◆ WESTCHESTER, IL HAIL HISTORY · COOK COUNTY
Westchester, IL hail history & hail map
Westchester, Illinois has had 6 hail events in the past 5 years, with hail up to 2.00″ (Golf Ball). Most recent: Jul 27, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
6Hail events in the past 5 years
2.00″Largest recorded hail · Golf Ball
2.00″Largest ground report (within 3 mi)
1.00″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Westchester, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Westchester
| Date | Peak hail | Sources |
|---|---|---|
| Jul 27, 2026 | 1.50″ Ping Pong Ball | Radar 1.00″ · 2 ground reports (max 1.50″) |
| Mar 31, 2026 | 1.00″ Quarter | 3 ground reports (max 1.00″) |
| Mar 10, 2026 | 2.00″ Golf Ball | 4 ground reports (max 2.00″) |
| Mar 14, 2024 | 0.25″ Small | 1 ground report (max 0.25″) |
| Feb 28, 2024 | 1.00″ Quarter | 1 ground report (max 1.00″) |
| Feb 27, 2024 | 0.38″ Small | 1 ground report (max 0.38″) |
More Illinois hail history
All Illinois cities & hail days →
Events count days with NOAA MRMS radar hail over Westchester (41.850, -87.890) or an NWS / CoCoRaHS hail report within 3 miles. Data window: NOAA MRMS radar hail swaths Oct 2021 – Nov 2026; NWS / NCEI Storm Events reports Nov 2024 – Jul 2026; CoCoRaHS volunteer reports Oct 2021 – present. Radar hail sizes are estimates, not ground truth; hail at any single address can differ.