◆ OAK FOREST, IL HAIL HISTORY · COOK COUNTY
Oak Forest, IL hail history & hail map
Oak Forest, Illinois has had 5 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
5Hail events in the past 5 years
2.00″Largest recorded hail · Golf Ball
2.00″Largest ground report (within 3 mi)
1.75″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Oak Forest, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Oak Forest
| Date | Peak hail | Sources |
|---|---|---|
| Jul 27, 2026 | 1.75″ Golf Ball | Radar 1.75″ · 8 ground reports (max 1.75″) |
| May 4, 2026 | 0.75″ Penny | 1 ground report (max 0.75″) |
| Mar 26, 2026 | 1.00″ Quarter | 2 ground reports (max 1.00″) |
| May 7, 2024 | 2.00″ Golf Ball | 10 ground reports (max 2.00″) |
| Feb 28, 2024 | 2.00″ Golf Ball | 3 ground reports (max 2.00″) |
More Illinois hail history
All Illinois cities & hail days →
Events count days with NOAA MRMS radar hail over Oak Forest (41.603, -87.770) 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.