Henry County weather alerts
There are no active weather alerts for Henry County, IL right now.
Since 2016 the National Weather Service has issued about 1,043 alerts that included Henry County, roughly 104 a year. The most common is the severe thunderstorm warning (219 from 2016 to 2025). The last tornado warning was issued on August 10, 2026. 71 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 Henry County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Knox County, Bureau County, Mercer County, Rock Island County.
Henry County alert history
Alert events that included Henry County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 219 | 36 | November 11, 2026 |
| Dense Fog Advisory | 103 | 8 | September 11, 2026 |
| Winter Weather Advisory | 101 | 1 | March 16, 2026 |
| Flood Warning | 95 | 11 | October 2, 2026 |
| Severe Thunderstorm Watch | 70 | 11 | August 21, 2026 |
| Wind Advisory | 69 | 5 | April 2, 2026 |
| Tornado Warning | 50 | 6 | August 10, 2026 |
| Heat Advisory | 49 | 2 | August 31, 2026 |
| Flood Watch | 48 | 9 | September 30, 2026 |
| Cold Weather Advisory | 36 | 3 | January 26, 2026 |
| Tornado Watch | 29 | 8 | June 11, 2026 |
| Winter Storm Warning | 24 | 0 | November 29, 2025 |
| Freeze Warning | 22 | 1 | April 20, 2026 |
| Winter Storm Watch | 22 | 1 | March 16, 2026 |
| Frost Advisory | 20 | 3 | October 17, 2026 |
| Flash Flood Warning | 16 | 5 | September 20, 2026 |
| Extreme Heat Warning | 12 | 3 | September 2, 2026 |
| Red Flag Warning | 12 | 2 | February 27, 2026 |
| Freeze Watch | 9 | 0 | October 16, 2024 |
| Extreme Heat Watch | 7 | 2 | July 27, 2026 |
| High Wind Warning | 7 | 2 | March 15, 2026 |
| Extreme Cold Warning | 6 | 1 | January 23, 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 |
| Ice Storm Warning | 2 | 0 | February 12, 2019 |
| Snow Squall Warning | 2 | 0 | February 19, 2022 |
Tornado history in Henry County
71 tornadoes have been recorded in Henry County since 1950, injuring 8 people. That ranks 9 of 102 counties in Illinois. The most recent was on April 20, 2025 (rated EF1).
Strongest tornadoes in Henry County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 21, 1973 | F2 | Mercer County | 30.2 mi | 10 yd | 0 | 2 |
| April 21, 1967 | F2 | Henry County | 25.1 mi | 300 yd | 0 | 0 |
| September 26, 1959 | F2 | Henry County | 12.9 mi | 10 yd | 0 | 0 |
| April 26, 1956 | F2 | Henry County | 10.9 mi | 10 yd | 0 | 0 |
| March 31, 2023 | EF2 | Henry County | 9.3 mi | 440 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 20, 2025 | EF1 | Henry County | 7.2 mi | 100 yd | 0 | 0 |
| April 20, 2025 | EF1 | Henry County | 7.3 mi | 25 yd | 0 | 0 |
| April 20, 2025 | EF0 | Henry County | 1.1 mi | 50 yd | 0 | 0 |
| April 20, 2025 | EF0 | Henry County | 0.2 mi | 50 yd | 0 | 0 |
| April 20, 2025 | ? | Henry County | 0.3 mi | 10 yd | 0 | 0 |
About Henry County
- Population: 48,177 (2024 estimate)
- State: Illinois
- NOAA Weather Radio SAME code: 017073 (how to use it)