St. Croix County weather alerts
There are no active weather alerts for St. Croix County, WI right now.
Since 2016 the National Weather Service has issued about 649 alerts that included St. Croix County, roughly 65 a year. The most common is the severe thunderstorm warning (111 from 2016 to 2025). The last tornado warning was issued on May 15, 2025. 32 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 St. Croix County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Pierce County, Washington County, Polk County, Dunn County.
St. Croix County alert history
Alert events that included St. Croix County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 111 | 6 | June 19, 2026 |
| Winter Weather Advisory | 93 | 5 | March 16, 2026 |
| Dense Fog Advisory | 62 | 6 | October 1, 2026 |
| Severe Thunderstorm Watch | 60 | 7 | June 30, 2026 |
| Cold Weather Advisory | 59 | 3 | January 26, 2026 |
| Winter Storm Warning | 42 | 2 | April 2, 2026 |
| Winter Storm Watch | 37 | 2 | April 2, 2026 |
| Wind Advisory | 25 | 1 | March 13, 2026 |
| Flood Watch | 22 | 0 | August 18, 2025 |
| Heat Advisory | 22 | 6 | July 27, 2026 |
| Frost Advisory | 20 | 4 | May 11, 2026 |
| Tornado Watch | 17 | 1 | October 28, 2026 |
| Freeze Warning | 14 | 4 | October 17, 2026 |
| Tornado Warning | 11 | 0 | May 15, 2025 |
| Extreme Heat Watch | 8 | 2 | July 26, 2026 |
| Flood Warning | 8 | 0 | June 28, 2024 |
| Extreme Heat Warning | 6 | 3 | July 26, 2026 |
| Flash Flood Warning | 6 | 0 | July 4, 2023 |
| Extreme Cold Warning | 6 | 1 | January 23, 2026 |
| Blizzard Warning | 4 | 1 | March 15, 2026 |
| Fire Weather Watch | 4 | 0 | May 12, 2025 |
| Red Flag Warning | 4 | 0 | May 12, 2025 |
| Extreme Cold Watch | 3 | 1 | January 23, 2026 |
| Freeze Watch | 2 | 1 | October 17, 2026 |
| High Wind Watch | 1 | 0 | March 7, 2017 |
| High Wind Warning | 1 | 0 | December 16, 2021 |
| Ice Storm Warning | 1 | 0 | March 5, 2022 |
Tornado history in St. Croix County
32 tornadoes have been recorded in St. Croix County since 1950, killing 26 people and injuring 113. That ranks 20 of 72 counties in Wisconsin. The most recent was on May 15, 2025 (rated EF2).
Strongest tornadoes in St. Croix County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 4, 1958 | F5 | St. Croix County | 33.7 mi | 880 yd | 21 | 74 |
| July 30, 1977 | F3 | St. Croix County | 9.1 mi | 200 yd | 0 | 0 |
| May 10, 1953 | F2 | Pierce County | 105.7 mi | 100 yd | 4 | 27 |
| July 15, 1980 | F2 | St. Croix County | 0.1 mi | 10 yd | 1 | 12 |
| May 15, 2025 | EF2 | St. Croix County | 3.9 mi | 120 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 15, 2025 | EF2 | St. Croix County | 3.9 mi | 120 yd | 0 | 0 |
| August 29, 2024 | EF0 | St. Croix County | 1.7 mi | 50 yd | 0 | 0 |
| July 28, 2021 | EF1 | St. Croix County | 5.7 mi | 100 yd | 0 | 0 |
| July 14, 2010 | EF1 | St. Croix County | 2.5 mi | 30 yd | 0 | 0 |
| August 19, 2009 | EF0 | St. Croix County | 1.7 mi | 25 yd | 0 | 0 |
About St. Croix County
- Population: 97,954 (2024 estimate)
- State: Wisconsin
- NOAA Weather Radio SAME code: 055109 (how to use it)