◆ WILLOWBROOK, IL HAIL HISTORY · DU PAGE COUNTY
Willowbrook, IL hail history & hail map
Willowbrook, Illinois has had 7 hail events in the past 5 years, with hail up to 4.80″ (Softball). Most recent: Jul 27, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
7Hail events in the past 5 years
4.80″Largest recorded hail · Softball
4.80″Largest ground report (within 3 mi)
1.50″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Willowbrook, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Willowbrook
| Date | Peak hail | Sources |
|---|---|---|
| Jul 27, 2026 | 2.75″ Baseball | Radar 1.50″ · 18 ground reports (max 2.75″) |
| Jun 10, 2026 | 0.38″ Small | 1 ground report (max 0.38″) |
| Mar 10, 2026 | 4.80″ Softball | Radar 1.00″ · 13 ground reports (max 4.80″) |
| Feb 28, 2024 | 2.50″ Tennis Ball | 3 ground reports (max 2.50″) |
| Feb 27, 2024 | 0.75″ Penny | 1 ground report (max 0.75″) |
| May 7, 2023 | 0.88″ Nickel | 1 ground report (max 0.88″) |
| Apr 30, 2022 | 0.70″ Small | 1 ground report (max 0.70″) |
More Illinois hail history
All Illinois cities & hail days →
Events count days with NOAA MRMS radar hail over Willowbrook (41.767, -87.955) 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.