Heads up! Small hail spotted in these regions: Las Cruces, NM • El Paso, TXATTENTION! Damaging hail detected. Hail tracking is now active for this region: Champaign, ILHeads up! Small hail spotted in these regions: Las Cruces, NM • El Paso, TXATTENTION! Damaging hail detected. Hail tracking is now active for this region: Champaign, IL
Hi folks! Stay ahead of the storm with a 48-hour severe weather outlook, precise hail alerts, and live hail tracking. Access hail insights, historical hail maps, and detailed reports across 300+ regions for better planning and fewer "uh-oh" moments. Stay informed, stay safe, and stay protected - all completely free. Hi folks! Stay ahead of the storm with a 48-hour severe weather outlook, precise hail alerts, and live hail tracking. Access hail insights, historical hail maps, and detailed reports across 300+ regions for better planning and fewer "uh-oh" moments. Stay informed, stay safe, and stay protected - all completely free.
NOAA/NWS STORM PREDICTION CENTER REPORTS + U.S. CENSUS DATA
Hail, Wind & Tornado Reports in Knox County, IL
Public hail, wind, and tornado reports across Knox County, IL from May 14, 1961 through June 17, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.
Example: 61401 — search hail, wind and tornado public reports for any U.S. ZIP code
Hail Reports
99
Wind Reports
228
Tornado Reports
37
Max Hail Size
4.50″
Source NOAA SPC · NWS Local Storm ReportsCoverage Knox County, IL · 1961–presentUpdated Daily · last Jun 17, 2026
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 N Williamsfield, IL
1.75″hail
Apr 17, 2026 11:07 PM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: Hail damage due to golfball size hail.
NWS Hail Report Location: Williamsfield, IL
1.75″hail
Jun 26, 2024 12:53 AM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Altona, IL
1.00″hail
May 2, 2024 9:44 PM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: Between Maquon and Rapatee. SWOP report.
NWS Hail Report Location: 4 S Maquon, IL
1.00″hail
Mar 31, 2023 8:41 PM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: REPORT FROM MPING: QUARTER (1.00 IN.).
NWS Hail Report Location: 3 NW Henderson, IL
1.00″hail
Nov 10, 2020 8:35 PM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: REPORT FROM MPING: QUARTER (1.00 IN.) TIME ESTIMATED BY RADAR.
NWS Hail Report Location: 1 N Galesburg, IL
1.50″hail
Apr 9, 2020 4:01 AM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: SEVERAL REPORTS ON SOCIAL MEDIA OF 1 TO 1.5 INCH DIAMETER HAIL BETWEEN GALESBURG AND HENDERSON.
NWS Hail Report Location: 2 N Galesburg, IL
1.00″hail
Apr 8, 2020 8:59 PM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Galesburg, IL
1.75″hail
Sep 27, 2019 11:42 PM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: RELAYED BY FULTON COUNTY ESDA.
NWS Hail Report Location: Abingdon, IL
1.00″hail
May 26, 2018 10:40 PM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: SOCIAL MEDIA REPORT
NWS Hail Report Location: Knoxville, IL
1.25″hail
May 13, 2018 8:31 PM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 ESE Rio, IL
1.00″hail
May 13, 2018 8:25 PM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: RELAYED BY WFO DVN
NWS Hail Report Location: Rio, IL
1.00″hail
May 19, 2017 2:05 AM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Henderson, IL
1.00″hail
Mar 20, 2017 6:15 AM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: QUARTER SIZE HAIL AT 400 N GALEBURG RD FROM 1 TO 115 AM.
NWS Hail Report Location: Galesburg, IL
1.50″hail
Mar 20, 2017 6:05 AM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 S Galesburg, IL
1.75″hail
Mar 20, 2017 6:00 AM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: PING PONG TO GOLF BALL SIZE HAIL IN GALESBURG
NWS Hail Report Location: Galesburg, IL
1.00″hail
Mar 20, 2017 5:55 AM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: QUARTER SIZE HAIL AT 407 WEST 1ST STREET IN GALESBURG FROM 1255 TO 1 AM
NWS Hail Report Location: Galesburg, IL
1.00″hail
Mar 7, 2017 5:28 AM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 7 N Fairview, IL
1.00″hail
Feb 28, 2017 11:04 PM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: .
NWS Hail Report Location: 5 N Yates City, IL
1.25″hail
Feb 28, 2017 10:10 PM UTC
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: CORRECTION FOR ESTIMATED.
NWS Hail Report Location: Altona, IL
1.00″hail
Jun 10, 2015 8:40 PM CST-6
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 S Knoxville, IL
1.75″hail
Jun 10, 2015 8:40 PM CST-6
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4 N Abingdon, IL
0.88″hail
Jun 10, 2015 7:45 PM CST-6
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 S Galesburg, IL
0.75″hail
Jun 10, 2015 7:08 PM CST-6
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4.84 S Williamsfield, IL
0.88″hail
Jun 10, 2015 5:30 PM CST-6
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Gilson, IL
1.00″hail
Aug 4, 2014 4:36 PM CST-6
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 5 NE Victoria, IL
1.00″hail
Apr 28, 2014 3:35 PM CST-6
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: Nickel to quarter-sized hail covered the ground.
NWS Hail Report Location: SW Knoxville, IL
0.75″hail
Apr 28, 2014 1:53 PM CST-6
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: NE Dahinda, IL
0.75″hail
Apr 3, 2014 1:45 AM CST-6
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Wataga, IL
1.00″hail
Apr 3, 2014 1:26 AM CST-6
Hail report for Knox County, IL
Knox County · 18,301 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: W Galesburg, IL
Showing 15 of 30
Hail Damage Risk for Your Home+
Hail reports describe hail by diameter, often comparing stone size to familiar objects like peas, quarters, golf balls, and softballs. Use this guide as a starting point for possible hail damage to your roof, siding, gutters, vents, windows, and exterior. Actual hail damage depends on hail hardness, density, wind speed, impact angle, roof age, shingle condition, roof pitch, roofing material, installation quality, and prior storm damage.
Pea
0.25″
Low
Usually too small to cause hail damage to most sound asphalt roofs, siding, or gutters.
Mothball
0.50″
Sub-Severe Watch
Below the NWS severe-hail threshold, but not always harmless. Repeated small hail can scuff surfaces, wear aging shingles, and loosen protective granules over time.
Penny
0.75″
Minor / Watch
Below the NWS severe-hail threshold, but roof hail damage is still possible on older, brittle, poorly installed, or previously damaged shingles. May also mark screens, vents, gutters, and soft metal.
Nickel
0.88″
Minor / Watch
Still below the severe-hail threshold, but large enough to leave visible marks on soft metal and add wear to older or hail-weakened roof shingles.
Quarter
1.00″
Watch
The NWS severe-hail threshold. Quarter-size hail can bruise shingles, dent soft metal, and create roof hail damage worth checking.
Half Dollar
1.25″
Watch
More likely to dent gutters, vents, flashing, and siding. Hail damage risk rises quickly on older roofs or hail-weakened shingles.
Ping Pong / Walnut
1.50″
Likely
Hail damage becomes more likely, including bruised shingles, granule loss, dented siding, and damaged roof vents.
Golf Ball
1.75″
Likely
Often causes roof hail damage, cracked shingles, dented gutters, damaged flashing, and siding impacts. A roof inspection is recommended.
Hen Egg
2.00″
Serious
Can crack or puncture shingles, expose mat, dent siding, and cause widespread hail damage across the roof and exterior.
Tennis Ball
2.50″
Serious
Can cause heavy roof hail damage, punctured siding, broken skylights, damaged vents, and widespread exterior damage.
Baseball
2.75″
Major
Major hail damage is likely, including severe roof impacts, damaged siding, broken windows, and possible major roof repairs.
Tea Cup / Large Apple
3.00″
Major
Can cause heavy hail damage across the roof, siding, gutters, windows, and exterior. Significant repairs are often needed.
Softball
4.00″
Extreme
Destructive hail damage. Can severely damage roofing materials, siding, windows, gutters, vents, vehicles, and exterior surfaces.
Grapefruit
4.50″
Extreme
Catastrophic hail damage risk for roofs, windows, vehicles, siding, gutters, and exterior surfaces.
Source: NOAA / National Weather Service hail size references are used for hail-size comparisons and the 1.00″ severe-hail threshold. Damage descriptions are general homeowner guidance, not official NOAA/NWS damage ratings. Sub-severe hail under 1.00″ is below the severe threshold, but that does not mean “no roof damage.” Penny- to nickel-size hail can still contribute to granule loss, cosmetic surface marks, and added wear, especially on older, brittle, poorly installed, or previously damaged roofs.
Wind Report Description: Delayed report: multiple trees snapped or uprooted. Roof was torn off an outbuilding. Sheet metal from an outbuilding was wrapped around a tree. Time estimated from radar.
NWS Wind Report Location: 1 SSE Williamsfield, IL
UNKmph
Jun 17, 2026 1:55 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Damage to funeral home and power outage reported.
NWS Wind Report Location: Williamsfield, IL
UNKmph
Jun 17, 2026 1:37 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Tree on powerline at east Knox Rd. and Day St. Power outage reported.
NWS Wind Report Location: Galesburg, IL
UNKmph
Jun 11, 2026 1:01 AM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Flooding reported on West Carl Sandberg Drive in Galesburg with one car flooded/disabled.
NWS Wind Report Location: Galesburg, IL
UNKmph
May 17, 2026 9:45 AM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Several large tree limbs blown down. Power out. Time estimated from radar.
NWS Wind Report Location: 1 E Victoria, IL
UNKmph
Apr 17, 2026 11:11 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: 3-4 inch branch across the road just east of the 97 and 8 junction.
NWS Wind Report Location: 2 SSE Maquon, IL
UNKmph
Apr 17, 2026 11:07 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: tree snapped.
NWS Wind Report Location: 1 SSE Williamsfield, IL
UNKmph
Apr 17, 2026 11:05 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: 3 power poles snapped.
NWS Wind Report Location: 3 S Williamsfield, IL
UNKmph
Apr 17, 2026 11:03 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: flipped farm trailer... trees snapped... and several power poles snapped. There was also a semi flipped on I-74.
NWS Wind Report Location: 3 SSW Williamsfield, IL
UNKmph
Apr 17, 2026 11:01 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Reports of farm debris scattered about the field.
NWS Wind Report Location: 3 SSW Williamsfield, IL
UNKmph
Apr 2, 2026 11:20 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Powerlines blown down in rural Yates City.
NWS Wind Report Location: Yates City, IL
UNKmph
Apr 2, 2026 10:40 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Old tree snapped in middle of I-74 exit 54 ramp loop.
NWS Wind Report Location: 2 ENE Knoxville, IL
UNKmph
Apr 2, 2026 10:31 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Large tree branches broken near south end of BNSF Railway yard.
NWS Wind Report Location: 4 S Galesburg, IL
UNKmph
Mar 12, 2026 12:22 AM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Delayed report. Report with pictures of damage to a grain silo. Time estimated by radar.
NWS Wind Report Location: 4 E Victoria, IL
UNKmph
Mar 12, 2026 12:22 AM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Delayed report. Shipping container type storage building flipped onto its side. Time estimated by radar.
NWS Wind Report Location: 4 W West Jersey, IL
UNKmph
Mar 12, 2026 12:18 AM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Multiple power lines were blown down... a carport was snapped... and a shipping container was flipped into a house north of the IL-180 and IL-167 intersection.
NWS Wind Report Location: 3 E Victoria, IL
70mph
Aug 19, 2025 12:52 AM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Severe winds lasted 2-3 minutes.
NWS Wind Report Location: 1 N London Mills, IL
60mph
Aug 19, 2025 12:50 AM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Estimated 50 to 60 mph wind gusts.
NWS Wind Report Location: 1 N London Mills, IL
UNKmph
May 20, 2025 7:02 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Tree down on I-74 blocking eastbound right lane.
NWS Wind Report Location: 3 E Knoxville, IL
UNKmph
Apr 23, 2025 1:19 AM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Delayed report. Home playground equipment destroyed. Relayed via broadcast media. Time estimated from radar.
NWS Wind Report Location: 1 S Maquon, IL
69mph
Mar 17, 2025 2:15 AM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: REPORTED AT GBG.
NWS Wind Report Location: Galesburg Airport, IL
UNKmph
Aug 16, 2024 3:56 AM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Several tree tops broken off. Time estimated from radar.
NWS Wind Report Location: 3 SSE Dahinda, IL
UNKmph
Jul 18, 2024 1:05 AM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Report from mPING: 3-inch tree limbs broken; Power poles broken.
NWS Wind Report Location: 1 N Galesburg, IL
UNKmph
Jul 18, 2024 12:58 AM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Corn Belt Energy reported extensive tree and power line damage in the Oak Run area. Time estimated from radar.
NWS Wind Report Location: 3 NNW Dahinda, IL
UNKmph
Jul 18, 2024 12:55 AM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Extensive tree and power line damage across the southern half of Galesburg. Time estimated from radar.
NWS Wind Report Location: 1 SSE Galesburg, IL
UNKmph
Jun 27, 2024 2:00 AM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Two large trees blown down causing damage to home. Delayed report. Time approximate.
NWS Wind Report Location: 3 NNW Dahinda, IL
UNKmph
Jun 25, 2024 2:00 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Corrects previous tstm wnd dmg report from 3 NNW Dahinda. Two large trees blown down causing damage to home. Delayed report. Time approximate.
NWS Wind Report Location: 3 NNW Dahinda, IL
UNKmph
Jun 25, 2024 1:50 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Delayed Report. Large tree limbs down across Oak Run Golf Course.
NWS Wind Report Location: 4 NW Dahinda, IL
UNKmph
Jun 25, 2024 1:10 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Delayed report. Trees down in Galva Cemetery.
NWS Wind Report Location: 4 NW La Fayette, IL
UNKmph
Aug 11, 2023 12:05 PM UTC
Wind report for Knox County, IL
Knox County · 18,301 Homes in County
Wind Report Description: Uprooted tree has fallen onto the Maquon District Public Library.
NWS Wind Report Location: Maquon, IL
Showing 15 of 30
Wind Damage Risk for Your Home+
Storm reports list thunderstorm wind gusts in mph. The NWS marks storms as severe at 58+ mph, but wind damage to your home depends on roof age, shingle condition, installation, exposure, nearby trees, and prior hail or wind damage.
Below Severe
Under 58 mph
Minor
Usually little damage to a sound roof, but loose shingles, flashing, or debris may shift.
Severe
58–74 mph
Watch
Can loosen shingles, lift flashing, break limbs, and damage gutters, siding, fences, or trim.
Damaging
75–90 mph
Serious
Can peel shingles, damage vents, tear siding, rip gutters, and expose weak roof areas.
Extreme
90+ mph
Major
Can cause major roof covering loss, tree damage, broken windows, and structural damage.
Source: NOAA / National Weather Service storm reports. Gusts may be measured or estimated; actual wind damage varies by roof condition, exposure, and prior hail or wind damage.
Latest NWS Tornado Reports in Knox County
30 reports
UNKcategory
Apr 22, 2026 12:15 AM UTC
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: EF1... peak wind speed 90 mph... path length 10.3 miles... path width 200 yds. The tornado began approximately three miles east of Victoria... starting its path in a field just north of Knox Road 2250 N where it initially damaged large tree limbs. Tracking northeastward... it crossed Knox Road 2350 E... causing damage to a few power poles. Upon crossing into Stark County... the tornado damaged a two story residential home... resulting in shingle and siding loss. Additionally... a large outbuilding along County Road 100 E sustained substantial damage... including the loss of some metal roof panels. Approximately one half mile further northeast... along County Road 150 E... another two story residence experienced shingle damage to its roof. The storm continued to produce occasional tree damage after crossing north of County Road 600 N... affecting areas along County Roads 700 N and 750 N. The tornado then entered Toulon... first causing damage to an outbuilding... a carport... and electrical poles along Turner Avenu
NWS Tornado Report Location: 3 E Victoria, IL
UNKcategory
Apr 2, 2026 11:23 PM UTC
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: The tornado touched down about 2 miles east of Elba Center where it did some tree damage just south of Knox Road 900 N. It progressed across I-74 near E Knox Rd where it damaged an outbuilding and some trees. It caused additional tree damage along N Elmore Rd and W Swab Run Rd before dissipating near N McClellan Rd. Debris was thrown to the east of there as the tornado dissipated.
NWS Tornado Report Location: 4 N Yates City, IL
UNKcategory
Apr 2, 2026 11:18 PM UTC
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: The tornado developed near Douglas or about 3.5 miles west of Yates City along State Rt 8... where it damaged an outbuilding. It progressed to the northeast causing some damage to an outbuilding and numerous large trees along Knox Hwy 18 just south of 750 N. The tornado also damaged a couple of homes roofing and siding in that area before moving northeast across Knox Rd 2300 E where it did more tree damage before dissipating.
NWS Tornado Report Location: 3 W Yates City, IL
UNKcategory
Apr 2, 2026 11:18 PM UTC
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: The tornado touched down about 2 miles southeast of Williamsfield just west of the Knox County line... where it destroyed an outbuilding. It crossed into Peoria County and strengthened to 110 mph winds as it snapped off 7 large power poles along State Route 78 near the intersection with Hwy 150. The tornado progressed eastward producing tree damage near N Brimfield Rd and N Maher Rd before dissipating.
NWS Tornado Report Location: 2 SE Williamsfield, IL
UNKcategory
Apr 2, 2026 10:25 PM UTC
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: The tornado touched down about 4 miles southwest of Galesburg where it damaged a few trees before heading northeast toward Galesburg. The tornado did primarily tree damage as it crossed Galesburg and went into East Galesburg. The tornado dissipated just east of East Galesburg.
NWS Tornado Report Location: 4 SW Galesburg, IL
UNKcategory
Mar 12, 2026 12:22 AM UTC
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: The tornado developed about 4 miles west of West Jersey where it toppled a shipping container and caused tree damage. It intensified as it reached 100 E Rd and snapped more trees... damaged homes and outbuildings and tossed the debris to the east. The tornado dissipated shortly after it crossed State Route 78 where it damaged a home roof... broke windows and caused extensive siding damage.
NWS Tornado Report Location: 4 WNW West Jersey, IL
UNKcategory
Apr 23, 2025 1:41 AM UTC
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: The tornado touched down northeast of Altona and tracked 4.41 miles north before dissipating near Bishop Hill. It was on the ground for 7 minutes and was rated an EF-1.
NWS Tornado Report Location: 1 NE Altona, IL
UNKcategory
Apr 23, 2025 1:39 AM UTC
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: The tornado touched down west of Victoria and tracked 16.48 miles north-northeast before dissipating north of Galva. It was on the ground for 18 minutes and rated EF-1.
NWS Tornado Report Location: 1 W Victoria, IL
UNKcategory
Jul 22, 2024 1:20 AM UTC
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: EF1... max wind speed 105 mph... path length 1 mile... max width 150 yards. This short tracked tornado touched down west of North State Route 180 and moved southeast for 1 mile doing significant tree damage along Route 180 and in the field to the east. Many of the trees were blocking the road... but were cleaned up by the time we did the survey. The tornado lifted just south of County Road 1660 North near the county line.
NWS Tornado Report Location: 2 N Williamsfield, IL
UNKcategory
Jun 20, 2021 4:50 AM UTC
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: THIS TORNADO MAINLY DAMAGED TREES... CROPS... POWER POLES/LINES. THERE WAS ALSO SIGNIFICANT DAMAGE TO FARM OUTBUILDINGS AND DEBRIS WAS THROWN HALF A MILE. THE TORNADO ENDED 3 WNW OF MIDDLE GROVE AT 1205 AM. PATH LENGTH WAS 10.4 MILES. WIDTH WAS 250 YARDS. PEAK WIND WAS 110 MPH.
NWS Tornado Report Location: 3 SW Delong, IL
UNKcategory
May 27, 2019 8:15 PM UTC
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: TRAINED SPOTTER SAW A BRIEF TORNADO TOUCHDOWN 1 MILE SOUTH OF DAHINDA.
NWS Tornado Report Location: 1 S Dahinda, IL
UNKcategory
Jun 21, 2018 5:30 PM UTC
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 1 W Yates City, IL
UNKcategory
May 24, 2017 1:05 AM UTC
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: WEAK LANDSPOUT TORNADO IN A FIELD.
NWS Tornado Report Location: 1 N Maquon, IL
UNKcategory
May 18, 2017 2:20 AM UTC
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: AN EF-2 TORNADO WITH PEAK ESTIMATED WIND SPEEDS OF 120 MPH CAUSED DAMAGE THAT WAS 50 YARDS WIDE ALSO ITS 1.29 MILE PATH. DAMAGE WAS TO TWO SNAPPED POWER POLES... ONE HOME WITH SHINGLE DAMAGE AND ANOTHER WITH A ROOF COMPLETELY REMOVED AND DOORS BLOWN OUT. THE RONADO TOUCHED DOWN 2.0 MILES SOUTH SOUTHWEST OF GALVA AND LIFTED 0.8 MILES WEST OF GALVA.
NWS Tornado Report Location: 2 SSW Galva, IL
EF2category
Jun 5, 2010 6:56 PM CST-6
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: A tornado touched down 4.5 miles west-northwest of Yates City in eastern Knox County then tracked southeastward to the Knox-Peoria County line. Large tree limbs were snapped and crops were scoured in numerous places along this path. A house had the roof torn off and much of the upper level of the structure severely damaged. The attached garage was also destroyed. In addition, a large garage was destroyed, and seven outbuildings were severely damaged. The tornado continued southeastward into Peoria County.
NWS Tornado Report Location: 1.58 NNW Douglas, IL
EF0category
Jun 5, 2010 6:34 PM CST-6
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: A tornado briefly touched down in a field 3 miles northeast of Abingdon. Minor crop damage occurred: however, no structures were impacted.
NWS Tornado Report Location: 2.14 WSW Eastside Galesburg, IL
F0category
Jun 8, 2005 12:58 PM CST
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: A tornado briefly touched down and tore part of an outbuilding roof. No injuries or fatalities were reported.
NWS Tornado Report Location: 2 S Henderson, IL
F0category
Apr 20, 2004 4:40 PM CST
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: A tornado touched down 3 miles northwest of Victoria and traveled to the northeast. As it reached the intersection of 2500N and 1700E, it destroyed one farm building and damaged two other farm buildings. It continued to move to the northeast lifting 4.5 miles north of Victoria. Several trees and power lines were blown down as well. No injuries were reported.
NWS Tornado Report Location: 3 NW Victoria, IL
F0category
Apr 30, 2003 7:30 PM CST
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: A tornado briefly touched down in a field northeast of Victoria and was on the ground for about a mile. No damage or injuries were reported with this tornado.
NWS Tornado Report Location: 6 NE Victoria, IL
F0category
Sep 11, 2000 8:45 PM CST
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: A small tornado touched down 2.5 miles northeast of St. Augustine. It moved through some corn fields, flattening them, before lifting 3 miles east of St. Augustine. No damage occurred to any structures, trees or power lines. No injuries were reported. Wind estimates were between 60 and 65 miles per hour, classifying it as an F-0 on the Fujita scale.
NWS Tornado Report Location: 3 NE St Augustine, IL
F0category
Apr 22, 1999 9:27 PM CST
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: A tornado briefly touched down in a field 1.5 miles south of Appleton. No injuries or damage were reported.
NWS Tornado Report Location: 2 S Appleton, IL
F1category
Jun 29, 1998 3:20 PM CST
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: A tornado touched down 3.5 miles southwest of Williamsfield. It destroyed a steel corn crib, blew down a large tree which damaged a home. Also, several windows were blown out on the home. As the tornado travelled east it caused major tree damage for a mile. Then it blew a large tree onto another home and destroyed an empty silo. Next it destroyed a barn and two outbuildings, knocked yet another tree onto a home, as well as, breaking several windows and blowing several 2x4s into the home. Further down the road, the roof and east walls of two homes were destroyed. Then for the last half of a mile, ten power poles were blown down, as well as, numerous trees and a barn sustained moderate damage. One woman sustained minor injuries from flying glass. Damage is estimated around $2 million.
NWS Tornado Report Location: SW Williamsfield, IL
F0category
Aug 3, 1997 3:58 PM CST
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: A tornado briefly touched down on the south side of Lake Calhoun. It blew down between 25 to 30 large trees, some of which fell onto a picnic pavilion destroying it. No injuries were reported and no damage estimate was available.
NWS Tornado Report Location: 6 NE Victoria, IL
F0category
May 18, 1997 8:19 PM CST
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: A tornado briefly touched down in a field 8 miles west southwest of Yates City. No injuries or damage were reported.
NWS Tornado Report Location: 8 WSW Yates City, IL
F0category
Apr 30, 1997 2:00 PM CST
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: S Uniontown, IL
F2category
May 13, 1995 4:18 PM CST
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: A tornado touched down 1 N of St. Augustine and traveled to the northeast. Twelve farm structures and 14 pieces of farm equipment were destroyed. Eighteen homes were either damaged or destroyed. Numerous trees were blown over and a 10 acre orchard with over 1200 trees was destroyed. The tornado also took off the roof of the Maquon Fire Department before it lifted and dissipated 1 NE of Maquon. Two people sustained minor injuries and damage was estimated around $1.6 million.
NWS Tornado Report Location: N St Augustine, IL
F1category
Jul 6, 1987 4:18 PM CST
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IL
F2category
Mar 4, 1976 5:45 PM CST
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IL
F2category
Mar 23, 1975 7:18 PM CST
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IL
UNKcategory
Jun 20, 1974 8:20 PM CST
Tornado report for Knox County, IL
Knox County · 18,301 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IL
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Tornado Damage Risk for Your Home+
After a tornado, the National Weather Service assigns an EF rating from EF0 to EF5 based on surveyed damage. The rating estimates wind speed from what the tornado damaged, so actual damage can vary by construction quality, roof age, garage doors, windows, trees, debris, and how close the home was to the tornado path.
EF0
65–85 mph
Light
Can peel shingles, damage gutters or siding, break tree limbs, and toss loose outdoor items.
EF1
86–110 mph
Moderate
Can strip roof covering, damage exterior doors, break windows, snap trees, and cause heavier siding or gutter damage.
EF2
111–135 mph
Serious
Can tear off large sections of roofing, break or uproot trees, destroy weaker structures, and cause major exterior damage.
EF3–EF5
136+ mph
Severe
Can remove roofs and walls, destroy large portions of homes, toss vehicles, and cause severe to total destruction near the path.
Source: NOAA / National Weather Service. EF ratings are assigned after a post-storm damage survey and are based on observed damage, not a direct measurement at every home.
NWS Hail, Wind and Tornado Reports in Knox County on the Interactive Map
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This snapshot is for local area context only and describes the selected state, county, city, or ZIP area — not a specific home or property. For ZIP-level estimated hail impact, use Free Hail Maps to generate a hail report with key impact details for that ZIP.
Top ZIP Codes with NWS Storm Reports in Knox County
Not sure if hail may have affected your home in Knox County? Ask a local pro for a Remote Hail Inspection. They can review hail activity for your property and help you decide whether an in-person roof or exterior inspection makes sense.
How many hail, wind, and tornado reports does Knox County have on record?
Our records show 99 hail, 228 wind, and 37 tornado reports in Knox County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on June 17, 2026.
What is the largest hail ever reported in Knox County?
The largest hail size in these storm-report records in Knox County is 4.50″. It was reported near Galesburg, IL on May 9, 1995.
A storm report showed up near my home in Knox County — does that mean my roof is damaged?
Not necessarily. A storm report only means hail, wind, or a tornado was observed nearby; it does not confirm damage at any specific address, and conditions change from block to block. Check an address-level hail report first, and if it looks significant, find a local pro that serves Knox County and ask about a Remote Hail Inspection before anyone climbs on the roof.
I am buying a home in Knox County — why should I look at its storm history?
Recent hail or wind can leave a roof or exterior with damage that is easy to miss during a walkthrough, and a recent roof replacement is sometimes an insurance job after a storm. Reviewing the storm history for a Knox County address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.
I am selling a home in Knox County — how does this help me?
Knowing the storm history for your address lets you answer buyer questions with confidence, document repairs you have already made, and decide whether a pre-listing roof check is worthwhile. A clear hail history removes a common sticking point during negotiations.
How do I check hail history for a specific Knox County address?
Use the address search to pull a free address-level hail report for any property in Knox County — no phone number or email required. It shows recent hail activity for that address so you know whether a closer roof or exterior review makes sense.
Where does this storm report data come from, and what are its limits?
Storm reports on this page are public reports from storm events across Knox County, IL, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in Knox County, but they do not confirm damage at any specific property. Report locations, sizes, and times may be approximate and can vary from what an individual home experienced. For property-specific hail history, use an address-level hail report or contact a participating local professional for a remote hail inspection. Pros inclusion is not an endorsement, and contacting a professional does not confirm damage at any property.
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