How big was the hail on June 17, 2026?

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 · June 17, 2026

Illinois hail map — June 17, 2026

Name: Illinois hail map — June 17, 2026
Creator: HailMate

NOAA radar detected hail of an inch or more over 4 Illinois cities on June 17, 2026. The largest stones — 2.00″, hen egg size — fell over Charleston.

Hail swath map for Charleston, IL on June 17, 2026 showing 2.00 inch hail. — Swath over Charleston on June 17, 2026 — 2.00″ hail. Each city below has its own map for this storm.

Cities hit: 4; 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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HailMate's canvassing map: hail swaths colour-banded by stone size, from yellow through red to purple, laid over a satellite view of a Texas territory, with hail swath and territory controls.

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 June 17, 2026

Charleston, IL2.00″ · hen egg Decatur, IL1.50″ · half dollar Springfield, IL1.00″ · quarter Quincy, IL1.00″ · quarter

What people on the ground measured in Illinois on June 17, 2026

12 reports filed with the National Weather Service — 1 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.

3.00″ baseball size NWS Employee
3 N Cadwell, IL6:18 PM CDTMoultrie County
Photo of 3 inch diameter jagged hailstone with ruler along with corn damaged from the large hail on farmland between Lovington and Arthur.
3.00″ baseball size Public
1 SE Arthur, IL6:25 PM CDTDouglas County
3.00″ baseball size Public
3 N Humboldt, IL6:44 PM CDTColes County
Relayed via social media.
2.75″ baseball size Storm Chaser
2 SW Humboldt, IL6:49 PM CDTColes County
2.75″ baseball size Public
3 N Charleston, IL6:51 PM CDTColes County
Report from mPING: Baseball (2.75 in.).
2.50″ hen egg size Public
Lovington, IL6:20 PM CDTMoultrie County
Wind driven tennis ball size hail put holes in siding and broke windows.
2.50″ hen egg size Public
Humboldt, IL6:46 PM CDTColes County
Relayed via social media.
2.00″ hen egg size Storm Chaser
2 SE Niantic, IL5:02 PM CDTMacon County
2.00″ hen egg size Public
Chesterville, IL6:35 PM CDTDouglas County
1.75″ golf ball size Mesonet
Illiopolis, IL4:47 PM CDTSangamon County
Golf Ball size hail.
1.75″ golf ball size Public
1 W Illiopolis, IL4:50 PM CDTSangamon County
Report from mPING: Golf Ball (1.75 in.).
1.75″ golf ball size Public
1 W Illiopolis, IL4:53 PM CDTSangamon County
Corrects previous hail report from 1 W Illiopolis. Report from mPING: Golf Ball (1.75 in.). Time estimated from radar.

Showing the 12 largest of 36 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 June 17, 2026

Arizona1 city · 1.00″Iowa1 city · 1.00″Florida1 city · 1.00″

The full US hail map for June 17, 2026 →

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 11, 20261 city · 1.00″June 10, 202614 cities · 1.00″June 9, 20261 city · 1.00″

Every hail day across Illinois →

FAQ

Illinois hail on June 17, 2026

NOAA radar put hail of an inch or more over 4 Illinois cities that day. The largest stones — 2.00 inches, hen egg size — were over Charleston. Every city hit is listed above with its own stone size.

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