Hail history in Cook County, IL
Hail of 1 inch or larger was reported in Cook County on 9 days between Jan 1, 2025 and Oct 26, 2026. The largest was 2.00 in (hen egg) on Mar 30, 2026, near Berwyn.
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Every hail day in Cook County
| Storm day | Largest hail | Reports | Near | |
|---|---|---|---|---|
| Jul 27, 2026 | 1.75 in (golf ball) | 19 | 1 ENE Willowbrook | Report for this date → |
| Apr 14, 2026 | 1.00 in (quarter) | 2 | 1 SW Prospect Heights | Report for this date → |
| Mar 30, 2026 | 2.00 in (hen egg) | 9 | Berwyn | Report for this date → |
| Mar 26, 2026 | 1.00 in (quarter) | 3 | 3 W Palos Park | Report for this date → |
| Mar 10, 2026 | 2.00 in (hen egg) | 13 | La Grange Park | Report for this date → |
| Sep 21, 2025 | 1.25 in (half dollar) | 1 | Matteson | Report for this date → |
| Aug 16, 2025 | 1.25 in (half dollar) | 6 | 1 E Palatine | Report for this date → |
| May 15, 2025 | 1.25 in (half dollar) | 3 | 1 E Franklin Park | Report for this date → |
| Mar 19, 2025 | 1.25 in (half dollar) | 3 | 1 W Oak Lawn | Report for this date → |
When hail falls in Cook County
Where hail was reported
Places named in the reports, given as distance and direction from the nearest town, as the National Weather Service logs them.
- La Grange Park3 reports
- 1 SE Schaumburg2 reports
- Berwyn2 reports
- Cicero2 reports
- Stickney2 reports
- 1 E Forest Park1 report
- 1 E Franklin Park1 report
- 1 E Greater Grand Cross1 report
- 1 E La Grange Park1 report
- 1 E North Riverside1 report
More hail history in Illinois
See a sample satellite hail report →
Source and method
NOAA Storm Prediction Center preliminary local storm reports of hail 1 inch or larger, Jan 1, 2025 to Oct 26, 2026 (updated Oct 27, 2026). Dates are SPC storm days, which run from 12:00 UTC to 12:00 UTC (about 7 a.m. to 7 a.m. Central), so a late-night storm appears on the day it started. Reports come from spotters, the public and NWS offices: they can be revised, and a storm nobody reported is missing. SPC storm reports.
A Skybridge report goes further for one address and date: GOES satellite cloud-top and lightning data, NOAA MRMS radar hail size and these storm reports within 50 km, in one document reviewed by a person, with a code anyone can verify.