Decatur County weather alerts
There are no active weather alerts for Decatur County, IA right now.
Since 2016 the National Weather Service has issued about 763 alerts that included Decatur County, roughly 76 a year. The most common is the severe thunderstorm warning (110 from 2016 to 2025). The last tornado warning was issued on June 10, 2026. 17 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 Decatur County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Wayne County, Ringgold County, Harrison County, Clarke County.
Decatur County alert history
Alert events that included Decatur County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 110 | 23 | September 20, 2026 |
| Dense Fog Advisory | 104 | 7 | September 17, 2026 |
| Severe Thunderstorm Watch | 83 | 7 | September 6, 2026 |
| Winter Weather Advisory | 75 | 2 | April 7, 2026 |
| Wind Advisory | 71 | 3 | June 17, 2026 |
| Heat Advisory | 48 | 3 | August 31, 2026 |
| Flood Watch | 44 | 9 | September 30, 2026 |
| Tornado Watch | 35 | 9 | June 10, 2026 |
| Cold Weather Advisory | 33 | 2 | January 26, 2026 |
| Freeze Warning | 19 | 1 | October 17, 2026 |
| Red Flag Warning | 18 | 5 | March 28, 2026 |
| Winter Storm Watch | 18 | 0 | November 29, 2025 |
| Winter Storm Warning | 18 | 0 | November 28, 2025 |
| Tornado Warning | 13 | 6 | June 10, 2026 |
| Frost Advisory | 12 | 1 | May 2, 2026 |
| Extreme Heat Watch | 9 | 2 | July 27, 2026 |
| Extreme Heat Warning | 7 | 2 | July 26, 2026 |
| Flash Flood Warning | 7 | 2 | August 5, 2026 |
| Freeze Watch | 7 | 1 | October 17, 2026 |
| Fire Weather Watch | 7 | 2 | March 28, 2026 |
| Extreme Cold Warning | 5 | 1 | January 23, 2026 |
| High Wind Warning | 5 | 2 | March 15, 2026 |
| Blizzard Warning | 4 | 1 | March 15, 2026 |
| Flood Warning | 4 | 1 | October 2, 2026 |
| Extreme Cold Watch | 3 | 1 | January 23, 2026 |
| High Wind Watch | 3 | 1 | March 15, 2026 |
| Ice Storm Warning | 1 | 0 | January 15, 2017 |
Tornado history in Decatur County
17 tornadoes have been recorded in Decatur County since 1950, injuring 2 people. That ranks 91 of 99 counties in Iowa. The most recent was on March 5, 2022 (rated unknown).
Strongest tornadoes in Decatur County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 24, 1989 | F4 | Adams County | 49 mi | 1,760 yd | 0 | 0 |
| June 2, 1980 | F4 | Decatur County | 31.2 mi | 140 yd | 0 | 0 |
| April 23, 1961 | F2 | Decatur County | 68.6 mi | 600 yd | 0 | 2 |
| March 5, 2022 | EF2 | Decatur County | 19.4 mi | 300 yd | 0 | 0 |
| June 22, 1964 | F2 | Decatur County | 1 mi | 200 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| March 5, 2022 | ? | Decatur County | 2.1 mi | 60 yd | 0 | 0 |
| March 5, 2022 | EF2 | Decatur County | 19.4 mi | 300 yd | 0 | 0 |
| November 11, 2015 | EF1 | Ringgold County | 11.2 mi | 200 yd | 0 | 0 |
| April 8, 2001 | F0 | Decatur County | 0.3 mi | 30 yd | 0 | 0 |
| May 27, 1996 | F0 | Decatur County | 0.1 mi | 25 yd | 0 | 0 |
About Decatur County
- Population: 7,656 (2024 estimate)
- State: Iowa
- NOAA Weather Radio SAME code: 019053 (how to use it)