How big was the hail on May 26, 2024?

The maximum estimated stone size anywhere in Illinois that day was 2.00 inches. Sizes vary street to street inside a single swath, so a city's figure is the largest radar estimated anywhere within about 5 miles of it.

Does this mean roofs were damaged?

Radar measures stone size, not damage. Whether a particular roof was damaged depends on stone size, wind direction, roof age and material — only an inspection settles it. These figures tell you where it is worth looking.

How do I see the actual swath on a map?

A HailMate plan puts the whole of Illinois on a real interactive map with this swath and three years of others already on it. $79/mo, and the canvassing tools come with it.

Illinois · May 26, 2024

Illinois hail map — May 26, 2024

Name: Illinois hail map — May 26, 2024
Creator: HailMate

NOAA radar detected hail of an inch or more over 6 Illinois cities on May 26, 2024. The largest stones — 2.00″, hen egg size — fell over Belleville.

Hail swath map for Belleville, IL on May 26, 2024 showing 2.00 inch hail. — Swath over Belleville on May 26, 2024 — 2.00″ hail. Each city below has its own map for this storm.

Cities hit: 6; in Illinois
Largest stone: 2.00″; hen egg size
Impact rating: 7/10; from stone size

Sizes come from NOAA MRMS radar (MESH), which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.

Roofing contractors

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All of Illinois at street level, with this storm already on it
Three years of hail swaths, filterable by stone size
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Homeowners

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This page covers Illinois as a whole. Check your own address to see every storm on record for your roof — the date and the stone size for each one — and we'll email you the full report to keep.

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Illinois cities hit on May 26, 2024

Belleville, IL2.00″ · hen egg East Saint Louis, IL1.50″ · half dollar Edwardsville, IL1.50″ · half dollar Collinsville, IL1.50″ · half dollar Granite City, IL1.00″ · quarter O'Fallon, IL1.00″ · quarter

What people on the ground measured in Illinois on May 26, 2024

12 reports filed with the National Weather Service — 5 from trained spotters or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.

2.00″ hen egg size Broadcast Media
4 NW Hornsby, IL5:18 PM CDTMacoupin County
Up to 2.25 inches.
2.00″ hen egg size Public
Granite City, IL5:55 PM CDTMadison County
2.00″ hen egg size Trained Spotter
6 NW Carrier Mills, IL7:10 PM CDTWilliamson County
1.75″ golf ball size Trained Spotter
1 ESE Troy, IL5:58 PM CDTMadison County
1.75″ golf ball size Public
Marine, IL6:07 PM CDTMadison County
time estimate from radar.
1.75″ golf ball size Emergency Mngr
1 SW Belleville, IL6:20 PM CDTSt. Clair County
1.75″ golf ball size Emergency Mngr
2 ESE Belleville, IL6:27 PM CDTSt. Clair County
1.50″ half dollar size Public
3 W Belleville, IL6:21 PM CDTSt. Clair County
Report from mPING: Ping Pong Ball (1.50 in.).
1.50″ half dollar size Public
2 W Belleville, IL6:22 PM CDTSt. Clair County
Report from mPING: Ping Pong Ball (1.50 in.).
1.25″ half dollar size Amateur Radio
1 E Troy, IL5:55 PM CDTMadison County
1.25″ half dollar size Public
1 E Troy, IL5:56 PM CDTMadison County
1.25″ half dollar size Trained Spotter
2 NNW Saint Jacob, IL6:03 PM CDTMadison County

Showing the 12 largest of 33 hail reports filed that day.

Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.

Other states hit on May 26, 2024

Missouri19 cities · 2.00″Tennessee4 cities · 2.00″Arkansas5 cities · 2.00″South Carolina6 cities · 1.50″Virginia4 cities · 1.00″Texas5 cities · 1.00″Kentucky2 cities · 1.00″Nebraska1 city · 1.00″

The full US hail map for May 26, 2024 →

Other Illinois hail days

August 13, 20263 cities · 1.00″August 11, 20263 cities · 1.00″August 9, 202640 cities · 1.50″July 27, 2026127 cities · 2.00″July 10, 20262 cities · 1.00″July 4, 20261 city · 1.50″July 3, 202618 cities · 1.00″July 2, 202614 cities · 1.00″June 24, 202614 cities · 1.50″June 17, 20264 cities · 2.00″June 11, 20261 city · 1.00″June 10, 202614 cities · 1.00″

Every hail day across Illinois →

FAQ

Illinois hail on May 26, 2024

NOAA radar put hail of an inch or more over 6 Illinois cities that day. The largest stones — 2.00 inches, hen egg size — were over Belleville. Every city hit is listed above with its own stone size.

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