Whiteside County weather alerts
There are no active weather alerts for Whiteside County, IL right now.
Since 2016 the National Weather Service has issued about 995 alerts that included Whiteside County, roughly 100 a year. The most common is the severe thunderstorm warning (199 from 2016 to 2025). The last tornado warning was issued on August 11, 2026. 40 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include Whiteside County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Henry County, Ogle County, Bureau County, Lee County.
Whiteside County alert history
Alert events that included Whiteside County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 199 | 33 | November 11, 2026 |
| Dense Fog Advisory | 99 | 8 | September 10, 2026 |
| Flood Warning | 95 | 7 | October 1, 2026 |
| Winter Weather Advisory | 95 | 1 | March 16, 2026 |
| Severe Thunderstorm Watch | 67 | 11 | August 21, 2026 |
| Wind Advisory | 64 | 5 | April 2, 2026 |
| Flood Watch | 44 | 9 | September 30, 2026 |
| Heat Advisory | 42 | 2 | August 31, 2026 |
| Tornado Warning | 40 | 2 | August 11, 2026 |
| Cold Weather Advisory | 39 | 3 | January 26, 2026 |
| Tornado Watch | 28 | 7 | June 11, 2026 |
| Winter Storm Warning | 27 | 0 | December 7, 2025 |
| Freeze Warning | 25 | 2 | October 17, 2026 |
| Frost Advisory | 22 | 2 | May 7, 2026 |
| Winter Storm Watch | 22 | 1 | March 16, 2026 |
| Flash Flood Warning | 15 | 1 | September 20, 2026 |
| Red Flag Warning | 11 | 2 | February 27, 2026 |
| Extreme Heat Warning | 10 | 2 | July 26, 2026 |
| Freeze Watch | 10 | 0 | October 16, 2024 |
| High Wind Warning | 9 | 2 | March 15, 2026 |
| Extreme Cold Warning | 7 | 1 | January 23, 2026 |
| Extreme Heat Watch | 6 | 2 | July 27, 2026 |
| High Wind Watch | 4 | 0 | December 15, 2021 |
| Extreme Cold Watch | 4 | 1 | January 23, 2026 |
| Fire Weather Watch | 3 | 2 | February 27, 2026 |
| Blizzard Warning | 2 | 1 | March 16, 2026 |
| Flood Advisory | 2 | 0 | June 1, 2019 |
| Ice Storm Warning | 2 | 0 | February 12, 2019 |
| Snow Squall Warning | 2 | 1 | January 22, 2026 |
Tornado history in Whiteside County
40 tornadoes have been recorded in Whiteside County since 1950, injuring 4 people. That ranks 29 of 102 counties in Illinois. The most recent was on May 24, 2024 (rated unknown).
Strongest tornadoes in Whiteside County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| March 29, 1981 | F4 | Whiteside County | 5.1 mi | 33 yd | 0 | 0 |
| May 7, 1962 | F2 | Whiteside County | 7.2 mi | 10 yd | 0 | 0 |
| May 7, 1962 | F2 | Whiteside County | 7.2 mi | 10 yd | 0 | 0 |
| March 21, 1966 | F2 | Whiteside County | 0.1 mi | 300 yd | 0 | 0 |
| March 31, 2023 | EF1 | Bureau County | 13.9 mi | 150 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 24, 2024 | ? | Whiteside County | 1 mi | 10 yd | 0 | 0 |
| April 20, 2023 | EF1 | Whiteside County | 5.9 mi | 300 yd | 0 | 0 |
| March 31, 2023 | EF1 | Bureau County | 13.9 mi | 150 yd | 0 | 0 |
| March 5, 2022 | EF1 | Whiteside County | 4 mi | 50 yd | 0 | 0 |
| November 10, 2020 | EF1 | Whiteside County | 4.3 mi | 100 yd | 0 | 0 |
About Whiteside County
- Population: 54,657 (2024 estimate)
- State: Illinois
- NOAA Weather Radio SAME code: 017195 (how to use it)