Butler County weather alerts
There are no active weather alerts for Butler County, IA right now.
Since 2016 the National Weather Service has issued about 838 alerts that included Butler County, roughly 84 a year. The most common is the severe thunderstorm warning (132 from 2016 to 2025). The last tornado warning was issued on July 20, 2026. 30 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 Butler County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Black Hawk County, Franklin County, Bremer County, Grundy County.
Butler County alert history
Alert events that included Butler County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 132 | 18 | September 4, 2026 |
| Winter Weather Advisory | 105 | 6 | March 16, 2026 |
| Dense Fog Advisory | 84 | 8 | September 17, 2026 |
| Wind Advisory | 81 | 3 | April 8, 2026 |
| Severe Thunderstorm Watch | 72 | 8 | August 18, 2026 |
| Cold Weather Advisory | 56 | 3 | January 26, 2026 |
| Flood Warning | 45 | 2 | October 1, 2026 |
| Flood Watch | 30 | 7 | September 30, 2026 |
| Winter Storm Warning | 27 | 1 | February 19, 2026 |
| Winter Storm Watch | 27 | 1 | March 15, 2026 |
| Heat Advisory | 25 | 2 | July 20, 2026 |
| Tornado Watch | 22 | 4 | July 20, 2026 |
| Freeze Warning | 19 | 2 | October 17, 2026 |
| Tornado Warning | 17 | 2 | July 20, 2026 |
| Frost Advisory | 13 | 3 | May 11, 2026 |
| Extreme Cold Warning | 13 | 1 | January 23, 2026 |
| Red Flag Warning | 13 | 2 | March 28, 2026 |
| Flash Flood Warning | 11 | 1 | October 1, 2026 |
| Blizzard Warning | 9 | 2 | March 15, 2026 |
| High Wind Warning | 9 | 2 | March 15, 2026 |
| Extreme Heat Watch | 6 | 2 | July 27, 2026 |
| Extreme Heat Warning | 5 | 2 | July 26, 2026 |
| Extreme Cold Watch | 5 | 1 | January 23, 2026 |
| High Wind Watch | 4 | 2 | March 15, 2026 |
| Freeze Watch | 4 | 1 | October 17, 2026 |
| Ice Storm Warning | 3 | 0 | December 14, 2024 |
| Fire Weather Watch | 1 | 2 | March 28, 2026 |
Tornado history in Butler County
30 tornadoes have been recorded in Butler County since 1950, killing 23 people and injuring 539. That ranks 59 of 99 counties in Iowa. The most recent was on December 15, 2021 (rated EF1).
Strongest tornadoes in Butler County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 15, 1968 | F5 | Franklin County | 62.1 mi | 600 yd | 13 | 462 |
| May 25, 2008 | EF5 | Grundy County | 41 mi | 2,100 yd | 9 | 70 |
| September 1, 1961 | F4 | Butler County | 26.6 mi | 27 yd | 0 | 7 |
| May 20, 1953 | F3 | Story County | 116.1 mi | 400 yd | 1 | 0 |
| June 27, 1998 | F2 | Butler County | 25.5 mi | 80 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| December 15, 2021 | EF1 | Butler County | 4.2 mi | 200 yd | 0 | 0 |
| July 14, 2021 | EF2 | Butler County | 12.9 mi | 630 yd | 0 | 0 |
| July 14, 2021 | ? | Butler County | 1.2 mi | 50 yd | 0 | 0 |
| November 28, 2016 | EF0 | Grundy County | 5.7 mi | 50 yd | 0 | 0 |
| August 31, 2014 | EF0 | Butler County | 1.1 mi | 40 yd | 0 | 0 |
About Butler County
- Population: 14,156 (2024 estimate)
- State: Iowa
- NOAA Weather Radio SAME code: 019023 (how to use it)