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NOAA/NWS STORM PREDICTION CENTER REPORTS + U.S. CENSUS DATA

Hail, Wind & Tornado Reports in and near Harmon, IL

Public hail, wind, and tornado reports in and near Harmon, IL from March 14, 1957 through June 16, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 61042 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
11
Wind Reports
13
Tornado Reports
8
Max Hail Size
1.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Harmon, IL · 1957–present Updated  Daily · last Jun 16, 2026

Latest NWS Hail Reports in and near Harmon, IL

11 reports
Free hail report for your home →
1.75″ hail
Apr 20, 2023
9:45 PM UTC
Hail report for Harmon, IL
Lee County · 11,747 Homes in County
Hail Report Description: GOLF BALL SIZED HAIL WEST OF AMBOY. TIME ESTIMATED BY RADAR.
NWS Hail Report Location: 6 E Harmon, IL
1.00″ hail
May 16, 2019
11:53 PM UTC
Hail report for Harmon, IL
Lee County · 11,747 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Harmon, IL
1.00″ hail
May 14, 2018
9:15 PM UTC
Hail report for Harmon, IL
Lee County · 11,747 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 6 S Walton, IL
0.88″ hail
Jun 21, 2014
3:08 PM CST-6
Hail report for Harmon, IL
Lee County · 11,747 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .52 W Harmon, IL
0.88″ hail
May 11, 2014
3:09 PM CST-6
Hail report for Harmon, IL
Lee County · 11,747 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .52 W Harmon, IL
1.00″ hail
May 11, 2005
4:00 AM CST
Hail report for Harmon, IL
Lee County · 11,747 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 5 S Harmon, IL
0.75″ hail
Jul 6, 2003
7:40 PM CST
Hail report for Harmon, IL
Lee County · 11,747 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 S Harmon, IL
0.75″ hail
May 9, 2003
10:40 PM CST
Hail report for Harmon, IL
Lee County · 11,747 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 6 S Harmon, IL
0.88″ hail
Apr 19, 2000
10:25 PM CST
Hail report for Harmon, IL
Lee County · 11,747 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Harmon, IL
1.50″ hail
Sep 9, 1991
6:45 PM CST
Hail report for Harmon, IL
Lee County · 11,747 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, IL
1.75″ hail
Jun 19, 1990
9:20 PM CST
Hail report for Harmon, IL
Lee County · 11,747 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, IL
Showing 11 of 11
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.

Latest NWS Wind Reports in and near Harmon, IL

13 reports
Free hail report + wind check →
UNK mph
Jun 16, 2026
12:12 AM UTC
Wind report for Harmon, IL
Lee County · 11,747 Homes in County
Wind Report Description: Corrects time of previous tstm wnd dmg report from 5 S Harmon. Tree branches broken... leaning power poles... and damage to the roof and a wall of an old barn. Location between Harmon and Walnut... relayed via social media. Time estimated by radar.
NWS Wind Report Location: 5 S Harmon, IL
UNK mph
Jun 10, 2026
7:05 PM UTC
Wind report for Harmon, IL
Lee County · 11,747 Homes in County
Wind Report Description: Tree branches broken... leaning power poles... and damage to the roof and a wall of an old barn. Location between Harmon and Walnut... relayed via social media. Time estimate by radar.
NWS Wind Report Location: 5 S Harmon, IL
UNK mph
Jul 29, 2023
2:50 AM UTC
Wind report for Harmon, IL
Lee County · 11,747 Homes in County
Wind Report Description: Tree on a house and a propane tank just S/SE of Polo at Sterling Rd and Route 26.
NWS Wind Report Location: 5 E Harmon, IL
UNK mph
Jun 26, 2023
4:56 AM UTC
Wind report for Harmon, IL
Lee County · 11,747 Homes in County
Wind Report Description: Tree down in Lee County at intersection of IL 26 and Todd Road... blocking traffic.
NWS Wind Report Location: 9 SE Harmon, IL
UNK mph
Apr 4, 2023
5:00 PM UTC
Wind report for Harmon, IL
Lee County · 11,747 Homes in County
Wind Report Description: SEMI TIPPED OVER ON US30 NEAR HARMON. TIME ESTIMATED BY RADAR.
NWS Wind Report Location: 3 N Harmon, IL
UNK mph
Aug 10, 2020
7:25 PM UTC
Wind report for Harmon, IL
Lee County · 11,747 Homes in County
Wind Report Description: SEVERAL BRANCHES DOWN. EXTERIOR SIDE OF HOUSE PEELED AWAY.
NWS Wind Report Location: Harmon, IL
100 mph
Jun 24, 2013
3:29 PM CST-6
Wind report for Harmon, IL
Lee County · 11,747 Homes in County
Wind Report Description: Winds were estimated in excess of 80 mph and upwards of 100 mph for a 13 mile swath. A large outbuilding bolted to its foundation was destroyed. One part of the barn wall was lifted taking a portion of the foundation with it. Numerous large trees were snapped or uprooted, including one that fell onto the front portion of a house. In Walton, four large grain storage bins were destroyed. Also in Walton, a metal outbuilding was destroyed with debris thrown over 200 yards. Shingle damage was also noted on a few homes.
NWS Wind Report Location: 3.57 S Harmon, IL
63 mph
Jun 12, 2008
10:45 PM CST-6
Wind report for Harmon, IL
Lee County · 11,747 Homes in County
Wind Report Description: Trees were blown down.
NWS Wind Report Location: W Harmon, IL
60 mph
May 11, 2005
4:00 AM CST
Wind report for Harmon, IL
Lee County · 11,747 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 5 S Harmon, IL
69 mph
May 21, 1987
8:45 PM CST
Wind report for Harmon, IL
Lee County · 11,747 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, IL
UNK mph
Jun 20, 1974
5:40 PM CST
Wind report for Harmon, IL
Lee County · 11,747 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, IL
UNK mph
Aug 8, 1962
6:15 PM CST
Wind report for Harmon, IL
Lee County · 11,747 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, IL
73 mph
Mar 14, 1957
3:05 PM CST
Wind report for Harmon, IL
Lee County · 11,747 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, IL
Showing 13 of 13
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 and near Harmon, IL

8 reports
UNK category
Mar 31, 2023
11:56 PM UTC
Tornado report for Harmon, IL
Lee County · 11,747 Homes in County
Tornado Report Description: [THIS TORNADO BEGAN IN WFO DVNS AREA] NWS SURVEY CONFIRMS AN EF-1 TORNADO WITH PEAK WINDS OF 110 MPH DEVELOPED SOUTHWEST OF DEER GROVE... CROSSED THE LEE COUNTY LINE JUST SOUTH OF THE GREEN RIVER AND TRACKED NORTHEAST BEFORE LIFTING NEAR MAYTOWN AND GAME ROADS.
NWS Tornado Report Location: 9 SSW Harmon, IL
UNK category
Jul 5, 2020
12:02 AM UTC
Tornado report for Harmon, IL
Lee County · 11,747 Homes in County
Tornado Report Description: VIDEO AND PICTURES RECEIVED OF A BRIEF LANDSPOUT TORNADO IN AN OPEN FIELD.
NWS Tornado Report Location: 8 SSW Harmon, IL
EF1 category
Jun 22, 2015
6:28 PM CST-6
Tornado report for Harmon, IL
Lee County · 11,747 Homes in County
Tornado Report Description: The tornado touched down near Howland Road where hardwood trees were snapped. The tornado moved southeast just north of Harmon where additional trees were snapped. The tornado snapped trees as it cross Hoyle Road. The tornado lifted before reaching IL-26. Peak winds were estimated to be 105 mph. (Tornado 2 of 10).
NWS Tornado Report Location: 2.7 NW Harmon, IL
EF0 category
Jun 22, 2015
6:20 PM CST-6
Tornado report for Harmon, IL
Lee County · 11,747 Homes in County
Tornado Report Description: This is a continuation of a tornado that began in Whiteside County (NWS Quad Cities). The tornado crossed the county line and did no additional damage. (Tornado 1 of 10).
NWS Tornado Report Location: 1.22 NNW Van Petten, IL
EF0 category
Jun 24, 2013
3:32 PM CST-6
Tornado report for Harmon, IL
Lee County · 11,747 Homes in County
Tornado Report Description: The tornado mainly traveled over farm fields but did take down numerous utility poles, including a few that were bent sharply to the south, opposite of the storm motion which was to the northeast. A weakly constructed barn was destroyed near the end of the path.
NWS Tornado Report Location: 1.45 SSW Harmon, IL
F0 category
May 9, 1995
5:25 PM CST
Tornado report for Harmon, IL
Lee County · 11,747 Homes in County
Tornado Report Description: State Police reported a tornado on the ground southwest of Harmon. No damage was reported. Golf ball-size hail fell near Dixon.
NWS Tornado Report Location: Harmon, IL
F0 category
Apr 2, 1988
4:50 PM CST
Tornado report for Harmon, IL
Lee County · 11,747 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IL
F2 category
Apr 21, 1967
4:02 PM CST
Tornado report for Harmon, IL
Lee County · 11,747 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IL
Showing 8 of 8
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 and near Harmon, IL on the Interactive Map

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Browse ZIP Codes with NWS Storm Reports in Harmon

61042 24
Harmon, IL Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · City

Harmon, IL area census snapshot

People & households
Population81
Households34
Housing units41
Income
Median household income$57,083
$100k+ households38.2%
$150k+ households29.4%
Housing stock
Single-family detached40
Attached single-family0
Small multifamily1
Large multifamily0
Mobile homes0
Housing mix
Single-family share97.6%
Attached-home share--
Multifamily share2.4%
Mobile-home share--
Ownership & occupancy
Owner-occupied31
Renter-occupied3
Vacant units7
Home value & age
Median home value$112,500
Owner homes $300k+--
Owner homes $500k+--
Owner homes $750k+--
Median year built1946
Older-home share87.8%
Vehicle context
Households with cars33
Free hail maps

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.

Frequently asked questions

for homeowners, buyers & sellers
How many hail, wind, and tornado reports does Harmon have on record?

Our records show 11 hail, 13 wind, and 8 tornado reports in and near Harmon, IL, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on June 16, 2026.

What is the largest hail ever reported in Harmon?

The largest hail size in these storm-report records in and near Harmon, IL is 1.75″. It was reported near Harmon, IL on April 20, 2023.

A storm report showed up near my home in Harmon — 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 Harmon and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in Harmon — 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 Harmon address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in Harmon — 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 Harmon address?

Use the address search to pull a free address-level hail report for any property in Harmon — 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 Harmon, IL, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in Harmon, 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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