Hail history in Winnebago County, IL
Hail of 1 inch or larger was reported in Winnebago County on 6 days between Jan 1, 2025 and Oct 26, 2026. The largest was 2.25 in (hen egg) on Apr 17, 2026, near 2 NE Lake Summerset.
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Every hail day in Winnebago County
| Storm day | Largest hail | Reports | Near | |
|---|---|---|---|---|
| Aug 21, 2026 | 1.00 in (quarter) | 1 | 1 N Machesney Park | Report for this date → |
| Apr 17, 2026 | 2.25 in (hen egg) | 10 | 2 NE Lake Summerset | Report for this date → |
| Apr 15, 2026 | 1.00 in (quarter) | 2 | Winnebago | Report for this date → |
| Apr 14, 2026 | 1.00 in (quarter) | 1 | Pecatonica | Report for this date → |
| Jul 10, 2025 | 1.50 in (ping pong ball) | 6 | 2 E Loves Park | Report for this date → |
| May 16, 2025 | 1.00 in (quarter) | 2 | Rockford Airport | Report for this date → |
When hail falls in Winnebago County
Where hail was reported
Places named in the reports, given as distance and direction from the nearest town, as the National Weather Service logs them.
- South Beloit3 reports
- 1 N Machesney Park1 report
- 1 S Durand1 report
- 1 SE Durand1 report
- 2 E Loves Park1 report
- 2 ESE Machesney Park1 report
- 2 NE Lake Summerset1 report
- 2 NNW Pecatonica1 report
- 2 SW Durand1 report
- 3 E Loves Park1 report
More hail history in Illinois
See a sample satellite hail report →
Source and method
NOAA Storm Prediction Center preliminary local storm reports of hail 1 inch or larger, Jan 1, 2025 to Oct 26, 2026 (updated Oct 27, 2026). Dates are SPC storm days, which run from 12:00 UTC to 12:00 UTC (about 7 a.m. to 7 a.m. Central), so a late-night storm appears on the day it started. Reports come from spotters, the public and NWS offices: they can be revised, and a storm nobody reported is missing. SPC storm reports.
A Skybridge report goes further for one address and date: GOES satellite cloud-top and lightning data, NOAA MRMS radar hail size and these storm reports within 50 km, in one document reviewed by a person, with a code anyone can verify.