Hail map for Naperville, IL — August 9, 2026
NOAA radar detected hail up to 1.00″ — quarter size — within 5 miles of Naperville on August 9, 2026.
- Max hail size
- 1.00″
- quarter
- Impact rating
- 3/10
- from stone size
- Size bands over the city
- 1
- distinct radar bands
- Measured on the ground
- 1.00″
- 2.2 mi away · Public
Sizes come from NOAA MRMS radar (MESH), which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
Work Naperville on the live hail map
- The whole state around Naperville, with this swath already on it
- Three years of hail swaths, filterable by stone size
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This page covers Naperville 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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Other towns hit on August 9, 2026
Other hail dates for Naperville
Every storm over Naperville →What people on the ground measured in Naperville, IL on August 9, 2026
4 reports filed with the National Weather Service. 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 Public2 W Naperville, IL · 2.2 mi away2:11 PM CDTDuPage County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Public3 W Naperville, IL · 3.7 mi away2:06 PM CDTDuPage County
Report from mPING: Quarter (1.00 in.).
- 0.75″ penny size Public1 N Naperville, IL · 0.3 mi away2:10 PM CDTDuPage County
Report from mPING: Dime (0.75 in.).
- 0.75″ penny size Public2 W Naperville, IL · 1.7 mi away2:10 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.
Naperville hail on August 9, 2026
NOAA radar estimated stones up to 1.00 inches — quarter size — within about 5 miles of Naperville that day, across 1 distinct size band. Sizes vary street to street inside a single swath.