St. Louis County weather alerts
There are no active weather alerts for St. Louis County, MO right now.
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. Louis County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring St. Clair County, Franklin County, St. Louis city, Madison County.
Map data: NWS, OpenFreeMap, OpenStreetMap
Tornado history in St. Louis County
49 tornadoes have been recorded in St. Louis County since 1950, killing 7 people and injuring 259. That ranks 4 of 115 counties in Missouri. The most recent was on June 4, 2025 (rated EF1).
Strongest tornadoes in St. Louis County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| January 24, 1967 | F4 | St. Louis County | 25 mi | 200 yd | 3 | 216 |
| December 10, 2021 | EF3 | St. Charles County | 27.3 mi | 150 yd | 1 | 2 |
| December 10, 2021 | EF3 | St. Charles County | 27.3 mi | 150 yd | 1 | 2 |
| December 31, 2010 | EF3 | Jefferson County | 6.7 mi | 440 yd | 1 | 6 |
| May 31, 2013 | EF3 | St. Charles County | 31.7 mi | 1,760 yd | 0 | 8 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 4, 2025 | EF1 | St. Louis County | 6.8 mi | 300 yd | 0 | 0 |
| March 14, 2025 | EF2 | Jefferson County | 25.3 mi | 850 yd | 0 | 0 |
| March 14, 2025 | EF2 | St. Louis County | 20.7 mi | 880 yd | 0 | 0 |
| March 14, 2025 | EF2 | Franklin County | 17.8 mi | 644 yd | 0 | 0 |
| April 18, 2024 | EF1 | St. Louis County | 7.8 mi | 40 yd | 0 | 0 |
About St. Louis County
- Population: 992,929 (2024 estimate)
- State: Missouri
- NOAA Weather Radio SAME code: 029189 (how to use it)