◆ MOKENA, IL HAIL HISTORY · WILL COUNTY
Mokena, IL hail history & hail map
Mokena, Illinois has had 3 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
3Hail events in the past 5 years
2.00″Largest recorded hail · Golf Ball
1.75″Largest ground report (within 3 mi)
2.00″Largest radar-estimated hail

Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Mokena, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Mokena
| Date | Peak hail | Sources |
|---|---|---|
| Jul 27, 2026 | 2.00″ Golf Ball | Radar 2.00″ · 4 ground reports (max 1.75″) |
| May 7, 2024 | 1.50″ Ping Pong Ball | 5 ground reports (max 1.50″) |
| May 7, 2023 | 0.75″ Penny | 1 ground report (max 0.75″) |
More Illinois hail history
All Illinois cities & hail days →
Events count days with NOAA MRMS radar hail over Mokena (41.530, -87.900) 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.