Hail HistoryHome › Illinois › Winnebago County
Hail history for Winnebago County, IL
157 hail reports in Winnebago County since 2006 on 72 days. The largest stones measured 3 in (tea cup) on Apr 7, 2020.
Cities in Winnebago County
- Rockford
53 hail days - Loves Park
56 hail days - Machesney Park
54 hail days - Roscoe
47 hail days - South Beloit
33 hail days - Rockton
38 hail days - Cherry Valley
58 hail days - Winnebago
47 hail days
Recent hail in Winnebago County
| Date | Hail size | Where |
|---|---|---|
| Aug 21, 2026 | 1 in quarter | Machesney Park 2 hail reports |
| Apr 17, 2026 | 2.25 in | Lake Summerset, Durand, Pecatonica 6 hail reports |
| Apr 15, 2026 | 1 in quarter | Winnebago, Wempleton 2 hail reports |
| Apr 14, 2026 | 1 in quarter | Pecatonica 1 hail report |
| Mar 10, 2026 | 1 in quarter | Lake Summerset 1 hail report |
| Jul 10, 2025 | 1.5 in ping pong ball | Loves Park, Machesney Park, Harlem 6 hail reports |
| May 16, 2025 | 1 in quarter | Rockford Airport, Cherry Valley 2 hail reports |
One row per day: the largest hail reported in the county that day, the places and the number of reports.
Hail days in Winnebago County by year
When hail season peaks in Winnebago County
Damaging thunderstorm winds in Winnebago County
246 reports of damaging thunderstorm wind in Winnebago County since 2006, on 104 days. The strongest measured gust was 81 mph on Mar 5, 2022.
| Date | Strongest gust | Where |
|---|---|---|
| Jul 3, 2026 | damage reported | Rockton 2 wind reports |
| Jun 11, 2026 | 62 mph, measured | Wempleton 1 wind report |
| Apr 17, 2026 | 62 mph, measured | Rockford Airport, Durand 3 wind reports |
| Apr 15, 2026 | 64 mph, estimated | Seward 1 wind report |
| Apr 14, 2026 | 60 mph, estimated | Durand 1 wind report |
| Mar 10, 2026 | 64 mph, estimated | Pecatonica 1 wind report |
| Jul 10, 2025 | 63 mph, estimated | Perryville 1 wind report |
| Jun 25, 2025 | 60 mph, estimated | South Beloit 4 wind reports |
| Jun 3, 2025 | 60 mph, estimated | Rockford, Perryville, Cherry Valley 3 wind reports |
| May 15, 2025 | 60 mph, measured | Rockford Airport 1 wind report |
Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.
Filing a roof or car hail claim?
Insurers ask for the date of loss. The dates on this page are when hail was reported near Winnebago County; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.
Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then).