Illinois hail map — August 9, 2026
NOAA radar detected hail of an inch or more over 70 Illinois cities on August 9, 2026. The largest stones — 1.50″, half dollar size — fell over Aurora.
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Every address in Illinois at once — three years of NOAA hail swaths drawn on a map you can zoom, filter and actually work.
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- The August 9, 2026 swath — and every other storm since 2023 across Illinois
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- Cities hit
- 70
- in Illinois
- Largest stone
- 1.50″
- half dollar size
- Impact rating
- 5/10
- from stone size
Sizes come from NOAA radar, which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
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Illinois cities hit on August 9, 2026
What people on the ground measured in Illinois on August 9, 2026
5 reports filed with the National Weather Service — 1 from trained observers or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 1.00″ quarter size Public3 W Naperville, IL2:06 PM CDTDuPage County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Public2 W Naperville, IL2:11 PM CDTDuPage County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Trained SpotterVernon Hills, IL11:03 PM CDTLake County
Trained spotter reports quarter size hail ongoing in Vernon Hills.
- 0.75″ penny size Public2 W Naperville, IL2:10 PM CDTDuPage County
Report from mPING: Dime (0.75 in.).
- 0.75″ penny size Public1 N Naperville, IL2:10 PM CDTDuPage 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 August 9, 2026
Other Illinois hail days
Shopping for a hail app to work Illinois?
This page is one storm. If you are deciding which tool to work Illinois with all season, these compare the ones roofers actually buy — with every price taken from the vendor's own site and linked.
- Best hail tracking apps, comparedHailMate, HailTrace, Hail Recon, HailStrike and RadarScope — every published price sourced and linked, and who each one is genuinely right for.
- HailMate vs HailTraceStreet-level NOAA swaths on a map your crew can knock, with the CRM already inside — instead of quote-only meteorologist maps billed on top of one.
- Hail map apps for roofers (and the Hail Recon alternative)Every storm on one map instead of loading dates one at a time — plus the canvassing and the whole claim, monthly, for what one state costs them a year.
- Best canvassing apps, comparedHailMate, SalesRabbit, SPOTIO, Knockio, RoofLink and Badger Maps — every published price sourced and linked, and two of them publish none.
Illinois hail on August 9, 2026
NOAA radar put hail of an inch or more over 70 Illinois cities that day. The largest stones — 1.50 inches, half dollar size — were over Aurora. Every city hit is listed above with its own stone size.