Illinois hail map — July 28, 2023
NOAA radar detected hail of an inch or more over 16 Illinois cities on July 28, 2023. The largest stones — 1.00″, quarter size — fell over Rockford.
- Cities hit
- 16
- in Illinois
- Largest stone
- 1.00″
- quarter size
- Impact rating
- 3/10
- 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.
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Illinois cities hit on July 28, 2023
What people on the ground measured in Illinois on July 28, 2023
11 reports filed with the National Weather Service — 4 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.
- 1.75″ golf ball size PublicWinfield, IL7:50 PM CDTDuPage County
Just west of central DuPage hospital.
- 1.50″ half dollar size Cocorahs1 SSW Winfield, IL7:43 PM CDTDuPage County
Minor leaf damage and car dents.
- 1.25″ half dollar size Public1 E Warrenville, IL7:30 PM CDTDuPage County
Report from mPING: Half Dollar (1.25 in.).
- 1.25″ half dollar size Public1 W Carol Stream, IL8:00 PM CDTDuPage County
Picture from Twitter.
- 1.25″ half dollar size Trained Spotter1 W Carol Stream, IL8:05 PM CDTDuPage County
Just west of Carol Stream.
- 1.00″ quarter size Emergency MngrWest Chicago, IL7:47 PM CDTDuPage County
Quarter size hail near IL-59 and Washington in West Chicago.
- 1.00″ quarter size Public1 ENE Wheaton, IL7:55 PM CDTDuPage County
In Wheaton near College Ave Metra.
- 1.00″ quarter size Public1 SW Glen Ellyn, IL8:02 PM CDTDuPage County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Trained Spotter1 S Sycamore, IL10:30 PM CDTDe Kalb County
- 1.00″ quarter size Trained Spotter1 S Sycamore, IL10:33 PM CDTDe Kalb County
Relayed via spotter network.
- 0.75″ penny size PublicMarengo, IL9:39 PM CDTMcHenry County
Report from mPING: Dime (0.75 in.).
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 July 28, 2023
Other Illinois hail days
Illinois hail on July 28, 2023
NOAA radar put hail of an inch or more over 16 Illinois cities that day. The largest stones — 1.00 inches, quarter size — were over Rockford. Every city hit is listed above with its own stone size.