Illinois hail map — August 16, 2025
NOAA radar detected hail of an inch or more over 39 Illinois cities on August 16, 2025. The largest stones — 2.00″, hen egg size — fell over Crystal Lake.
- Cities hit
- 39
- 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.
Work Illinois on the live hail map
- All of Illinois at street level, with this storm already on it
- Three years of hail swaths, filterable by stone size
- GPS door-knocking, pins, jobs and estimates — the full loop, not a preview
- Month-to-month, cancel anytime
One state, one user, everything included. $79/mo, cancel anytime.
Did hail hit your address?
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.
Check my addressFree, and no account needed to look it up. If hail did hit, you can ask for a free inspection from a vetted local roofer.
Illinois cities hit on August 16, 2025
What people on the ground measured in Illinois on August 16, 2025
12 reports filed with the National Weather Service — 2 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 Public1 N Winslow, IL7:33 PM CDTStephenson County
Report from mPING. This report was corroborated with photographic evidence of a jagged hailstone around 3 to 3.5 inches in diameter.
- 1.50″ half dollar size Public1 SW Port Barrington, IL4:04 PM CDTMcHenry County
Relayed via mping.
- 1.50″ half dollar size Public3 SW Naperville, IL5:14 PM CDTDuPage County
Relayed via mping.
- 1.25″ half dollar size PublicCary, IL4:05 PM CDTMcHenry County
Relayed via mping.
- 1.25″ half dollar size Cocorahs1 E Palatine, IL4:25 PM CDTCook County
- 1.25″ half dollar size PublicDes Plaines, IL4:44 PM CDTCook County
Report from mPING: Half Dollar (1.25 in.).
- 1.00″ quarter size Public1 NNW Vermilion Regiona, IL3:15 PM CDTVermilion County
Delayed report relayed via broadcast media of 1 inch hail stone at 1515pm from public viewer.
- 1.00″ quarter size PublicWoodstock, IL3:51 PM CDTMcHenry County
Relayed via mping.
- 1.00″ quarter size Public2 SE Belvidere, IL3:51 PM CDTBoone County
Relayed via mping.
- 1.00″ quarter size Public1 NW Belvidere, IL3:54 PM CDTBoone County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Trained SpotterRolling Meadows, IL4:28 PM CDTCook County
Harper College. Multiple large branches also broken.
- 1.00″ quarter size Trained SpotterArlington Heights, IL4:33 PM CDTCook County
1333 Chicago Ave.
Showing the 12 largest of 17 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 Illinois hail days
Illinois hail on August 16, 2025
NOAA radar put hail of an inch or more over 39 Illinois cities that day. The largest stones — 2.00 inches, hen egg size — were over Crystal Lake. Every city hit is listed above with its own stone size.