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

Hail, Wind & Tornado Reports in and near Lewistown, MT

Public hail, wind, and tornado reports in and near Lewistown, MT from June 15, 1956 through September 7, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 59457 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
60
Wind Reports
63
Tornado Reports
6
Max Hail Size
2.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Lewistown, MT · 1956–present Updated  Daily · last Sep 7, 2026

Latest NWS Hail Reports in and near Lewistown, MT

30 reports
Free hail report for your home →
1.00″ hail
Sep 7, 2026
12:47 AM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: Public reported quarter-sized hail at Lewistown Divide.
NWS Hail Report Location: 8 E Lewistown, MT
2.50″ hail
Jun 15, 2025
10:48 PM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: Trained spotter reports egg to tennis ball size hail. Images were provided.
NWS Hail Report Location: 3 S Lewistown, MT
1.00″ hail
Jun 21, 2024
8:36 PM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: Estimated hail up to 1 inch in diameter. Time of event is estimated via radar.
NWS Hail Report Location: 11 S Lewistown, MT
1.25″ hail
Jul 31, 2023
3:13 AM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: Social media pictures submitted of hail slightly larger than one inch in Lewistown.
NWS Hail Report Location: Lewistown, MT
1.00″ hail
Jul 30, 2023
3:15 AM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: Delayed report of hail up to 1 inch in diameter. Time estimated by radar.
NWS Hail Report Location: 3 S Lewistown, MT
1.00″ hail
Jun 1, 2023
9:07 PM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: Pictures submitted of hail being compared to a quarter. Occurred near Lewistown Pool.
NWS Hail Report Location: 1 SE Lewistown, MT
1.00″ hail
Jun 1, 2023
8:59 PM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: Quarter size hail reported by spotter along with 0.62 of rain in 21 minutes.
NWS Hail Report Location: 3 S Lewistown, MT
1.50″ hail
Jun 1, 2023
8:54 PM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: Spotter reports various sizes of hail fell for nearly 20 minutes. Largest was ping pong size. Time of report is when largest hail size correlates to radar data. Estimated peak wind gusts of around 50 mph. Impacts from hail noted to hay crop.
NWS Hail Report Location: 2 SE Lewistown, MT
1.00″ hail
Jul 7, 2021
8:55 PM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: INITIAL HAILSTONES UP TO QUARTER SIZE... TAPERING TO PEA SIZE ON BACK EDGE OF STORM. MEASURED 0.27IN OF RAIN IN ONLY 7 MINUTES.
NWS Hail Report Location: 3 S Lewistown, MT
1.00″ hail
May 20, 2020
2:35 AM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: SPOTTER REPORTS HAIL UP TO QUARTER SIZE COVERING THE ROADS.
NWS Hail Report Location: Lewistown, MT
1.25″ hail
May 20, 2020
2:30 AM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: HAIL UP TO HALF DOLLAR SIZE. HAIL A FEW INCHES DEEP IN AREAS.
NWS Hail Report Location: 4 WSW Lewistown, MT
1.00″ hail
Aug 20, 2019
2:15 AM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: STARTED OUT AS MARBLE-SIZED... THEN INCREASED TO THE SIZE OF QUARTERS. HAIL IS COVERING THE GROUND.
NWS Hail Report Location: 7 W Forestgrove, MT
1.00″ hail
Jul 13, 2019
10:34 PM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 NE Lewistown, MT
1.00″ hail
Jun 28, 2018
10:43 PM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: MOSTLY SMALL HAIL WITH A FEW QUARTER-SIZED HAILSTONES MIXED IN.
NWS Hail Report Location: 7 W Forestgrove, MT
1.25″ hail
Jun 21, 2018
11:10 PM UTC
Hail report for Lewistown, MT
Fergus County · 4,512 Homes in County
Hail Report Description: HALF DOLLAR-SIZED HAIL. MULTIPLE REPORTS OF BROKEN WINDOWS ON NORTH SIDES OF BUILDINGS. DELAYED REPORT...TIME ESTIMATED FROM RADAR.
NWS Hail Report Location: 8 W Forestgrove, MT
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.

Latest NWS Wind Reports in and near Lewistown, MT

30 reports
Free hail report + wind check →
61 mph
Jul 26, 2026
1:58 AM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: ASOS at KLWT Lewistown.
NWS Wind Report Location: 2 Wsw Lewistown, MT
UNK mph
Jul 15, 2026
1:05 AM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: Emergency manager reported downed trees and power lines in Lewistown. Location and time estimated.
NWS Wind Report Location: Lewistown, MT
58 mph
Jul 15, 2026
12:55 AM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: Ambient Weather Station just north of the Lewistown Airport.
NWS Wind Report Location: 4 W Lewistown, MT
UNK mph
Jul 13, 2026
12:07 AM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: Thunderstorm wind gusts uprooted a 25 to 30 ft spruce tree with an 8 inch diameter base.
NWS Wind Report Location: 3 S Lewistown, MT
UNK mph
Jul 2, 2025
11:15 PM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: Corrects previous tstm wnd dmg report from 1 NW Lewistown. Public reported on social media that an abandoned lumber shop collapsed due to the thunderstorms with photos of debris across the property. Time estimated based on radar.
NWS Wind Report Location: 1 NW Lewistown, MT
UNK mph
Jul 2, 2025
11:15 PM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: Trees down along the Lewistown Trail System blocking the trail. Time estimated based on radar.
NWS Wind Report Location: 1 W Lewistown, MT
UNK mph
Jul 2, 2025
11:10 PM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: Public reported on social media that an abandoned lumber shop collapsed due to the thunderstorms with photos of debris across the property. Time estimated based on radar.
NWS Wind Report Location: 1 NW Lewistown, MT
62 mph
Oct 22, 2024
12:38 AM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: Wind gust along advancing cold front in conjunction with shower activity. ASOS station KLWT Lewistown Airport.
NWS Wind Report Location: 3 SW Lewistown, MT
65 mph
Aug 20, 2024
2:00 AM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Lewistown, MT
60 mph
Sep 4, 2023
12:16 AM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: ASOS station KLWT Lewistown Airport. Secondary peak wind gust from outflow boundary.
NWS Wind Report Location: 3 SW Lewistown, MT
60 mph
Sep 4, 2023
12:09 AM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: ASOS station KLWT Lewistown Airport. Peak wind gust associated with outflow boundary.
NWS Wind Report Location: 3 SW Lewistown, MT
58 mph
Aug 4, 2022
9:32 PM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: ASOS STATION KLWT LEWISTOWN AIRPORT.
NWS Wind Report Location: 3 SW Lewistown, MT
UNK mph
Jul 7, 2021
9:08 PM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: SPOTTER REPORTS WINDS SNAPPING OFF LARGE TREE BRANCHES... AS WELL AS PEA-SIZE HAIL.
NWS Wind Report Location: 1 SSE Lewistown, MT
68 mph
Jul 7, 2021
8:59 PM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: SECOND SEVERE WIND GUST MEASURED AT KLWT ASOS.
NWS Wind Report Location: 2 WSW Lewistown, MT
80 mph
Jul 7, 2021
8:58 PM UTC
Wind report for Lewistown, MT
Fergus County · 4,512 Homes in County
Wind Report Description: UPDATED. NWS ESTIMATES STRAIGHT LINE WINDS OF 75 TO 85 MPH THROUGHOUT LEWISTOWN AND NEARBY SURROUNDING AREA. PREVIOUS REPORT: POWER POLE DOWN ON TRUCK BYPASS (ROUTE 87). 12 FOOT PIECE OF A ROOF ALSO DAMAGED.
NWS Wind Report Location: Lewistown, MT
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 and near Lewistown, MT

6 reports
F0 category
Jun 28, 2005
1:55 PM MST
Tornado report for Lewistown, MT
Fergus County · 4,512 Homes in County
Tornado Report Description: A tornado was reported by the public at Lewistown 3E. The torndao was on the ground only briefly with no damage or injuries reported.
NWS Tornado Report Location: 3 E Lewistown, MT
F0 category
Jun 5, 2004
7:30 PM MST
Tornado report for Lewistown, MT
Fergus County · 4,512 Homes in County
Tornado Report Description: Strong thunderstorms over southwest Fergus county spawned a second tornado during the evning hours of the 5th. This tornado also moved over rural areas of the county and caused little property damage.
NWS Tornado Report Location: 22 SW Lewistown, MT
F0 category
Aug 14, 1999
7:15 PM MST
Tornado report for Lewistown, MT
Fergus County · 4,512 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 12 NE Lewistown, MT
F2 category
Aug 14, 1999
4:15 PM MST
Tornado report for Lewistown, MT
Fergus County · 4,512 Homes in County
Tornado Report Description: NUMEROUS HAIL REPORTS 1 TO 2 INCHES...ONE WIND ESTIMATE AHEAD OF TORNADO 87KT
NWS Tornado Report Location: Lewistown, MT
F0 category
Jun 21, 1999
4:10 PM MST
Tornado report for Lewistown, MT
Fergus County · 4,512 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 11 NW Lewistown, MT
F0 category
Jun 6, 1997
7:48 PM MST
Tornado report for Lewistown, MT
Fergus County · 4,512 Homes in County
Tornado Report Description: BRIEF TOUCHDOWN
NWS Tornado Report Location: 10 E Lewistown, MT
Showing 6 of 6
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 Lewistown, MT on the Interactive Map

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Browse ZIP Codes with NWS Storm Reports in Lewistown

59457 187
Lewistown, MT Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · City

Lewistown, MT area census snapshot

People & households
Population6,028
Households2,823
Housing units3,047
Income
Median household income$44,195
$100k+ households22.9%
$150k+ households5.9%
Housing stock
Single-family detached2,010
Attached single-family27
Small multifamily341
Large multifamily284
Mobile homes385
Housing mix
Single-family share66.0%
Attached-home share0.9%
Multifamily share20.5%
Mobile-home share12.6%
Ownership & occupancy
Owner-occupied1,737
Renter-occupied1,086
Vacant units224
Home value & age
Median home value$159,500
Owner homes $300k+14.1%
Owner homes $500k+2.8%
Owner homes $750k+0.7%
Median year built1949
Older-home share80.1%
Vehicle context
Households with cars2,459
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 Lewistown have on record?

Our records show 60 hail, 63 wind, and 6 tornado reports in and near Lewistown, MT, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on September 7, 2026.

What is the largest hail ever reported in Lewistown?

The largest hail size in these storm-report records in and near Lewistown, MT is 2.75″. It was reported near Lewistown, MT on July 2, 2007.

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

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

I am selling a home in Lewistown — 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 Lewistown address?

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