Washington County weather alerts
There are no active weather alerts for Washington County, IA right now.
Since 2016 the National Weather Service has issued about 884 alerts that included Washington County, roughly 88 a year. The most common is the severe thunderstorm warning (167 from 2016 to 2025). The last tornado warning was issued on August 13, 2026. 25 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 Washington County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Henry County, Keokuk County, Johnson County, Iowa County.
Washington County alert history
Alert events that included Washington County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 167 | 35 | September 20, 2026 |
| Dense Fog Advisory | 102 | 7 | September 17, 2026 |
| Winter Weather Advisory | 86 | 2 | March 16, 2026 |
| Wind Advisory | 68 | 2 | March 12, 2026 |
| Severe Thunderstorm Watch | 62 | 12 | August 13, 2026 |
| Heat Advisory | 52 | 6 | August 31, 2026 |
| Flood Warning | 47 | 13 | October 2, 2026 |
| Flood Watch | 43 | 10 | September 30, 2026 |
| Cold Weather Advisory | 37 | 3 | January 26, 2026 |
| Tornado Watch | 27 | 9 | July 20, 2026 |
| Freeze Warning | 25 | 2 | October 17, 2026 |
| Tornado Warning | 22 | 7 | August 13, 2026 |
| Winter Storm Warning | 20 | 0 | November 29, 2025 |
| Winter Storm Watch | 19 | 1 | March 16, 2026 |
| Red Flag Warning | 17 | 2 | March 28, 2026 |
| Flash Flood Warning | 16 | 3 | September 20, 2026 |
| Frost Advisory | 16 | 1 | May 2, 2026 |
| Extreme Heat Warning | 12 | 3 | September 2, 2026 |
| Extreme Heat Watch | 8 | 2 | July 27, 2026 |
| Extreme Cold Warning | 8 | 1 | January 23, 2026 |
| Freeze Watch | 7 | 0 | October 16, 2024 |
| Fire Weather Watch | 5 | 1 | February 18, 2026 |
| Extreme Cold Watch | 4 | 1 | January 23, 2026 |
| High Wind Watch | 3 | 1 | March 15, 2026 |
| High Wind Warning | 3 | 2 | March 15, 2026 |
| Ice Storm Warning | 3 | 0 | December 14, 2024 |
| Snow Squall Warning | 3 | 0 | February 19, 2022 |
| Blizzard Warning | 2 | 1 | March 15, 2026 |
Tornado history in Washington County
25 tornadoes have been recorded in Washington County since 1950, injuring 52 people. That ranks 78 of 99 counties in Iowa. The most recent was on May 24, 2024 (rated EF1).
Strongest tornadoes in Washington County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| March 31, 2023 | EF4 | Keokuk County | 19.9 mi | 700 yd | 0 | 3 |
| April 23, 1965 | F3 | Poweshiek County | 47.4 mi | 10 yd | 0 | 1 |
| May 15, 1998 | F3 | Washington County | 47 mi | 400 yd | 0 | 47 |
| May 8, 1988 | F2 | Davis County | 71 mi | 60 yd | 0 | 0 |
| May 8, 1988 | F2 | Keokuk County | 36 mi | 60 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 24, 2024 | EF1 | Washington County | 22.5 mi | 150 yd | 0 | 0 |
| May 24, 2024 | EF1 | Washington County | 18.3 mi | 100 yd | 0 | 0 |
| March 31, 2023 | EF4 | Keokuk County | 19.9 mi | 700 yd | 0 | 3 |
| May 17, 2017 | EF1 | Washington County | 6 mi | 40 yd | 0 | 0 |
| May 17, 2017 | EF1 | Jefferson County | 3.2 mi | 25 yd | 0 | 0 |
About Washington County
- Population: 22,631 (2024 estimate)
- State: Iowa
- NOAA Weather Radio SAME code: 019183 (how to use it)