Stillwater County weather alerts
There are no active weather alerts for Stillwater County, MT right now.
Since 2016 the National Weather Service has issued about 539 alerts that included Stillwater County, roughly 54 a year. The most common is the winter weather advisory (122 from 2016 to 2025). No tornado warnings were recorded here in that period. 1 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 Stillwater County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Golden Valley County, Yellowstone County, Sweet Grass County, Park County.
Stillwater County alert history
Alert events that included Stillwater County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Winter Weather Advisory | 122 | 7 | October 11, 2026 |
| Severe Thunderstorm Warning | 96 | 7 | July 26, 2026 |
| Red Flag Warning | 41 | 6 | September 3, 2026 |
| Winter Storm Watch | 37 | 1 | March 12, 2026 |
| High Wind Warning | 33 | 8 | May 13, 2026 |
| Winter Storm Warning | 31 | 1 | March 12, 2026 |
| Fire Weather Watch | 27 | 6 | September 3, 2026 |
| Severe Thunderstorm Watch | 26 | 4 | August 27, 2026 |
| Cold Weather Advisory | 24 | 0 | February 17, 2025 |
| High Wind Watch | 20 | 6 | May 14, 2026 |
| Flood Advisory | 19 | 1 | July 15, 2026 |
| Flash Flood Warning | 16 | 2 | July 15, 2026 |
| Flood Warning | 11 | 0 | June 24, 2023 |
| Flood Watch | 10 | 3 | September 19, 2026 |
| Heat Advisory | 10 | 1 | July 24, 2026 |
| Extreme Cold Warning | 4 | 0 | January 12, 2024 |
| Dense Fog Advisory | 4 | 2 | November 1, 2026 |
| Extreme Heat Watch | 4 | 3 | August 1, 2026 |
| Extreme Heat Warning | 3 | 3 | August 1, 2026 |
| Tornado Watch | 1 | 0 | August 11, 2019 |
Tornado history in Stillwater County
1 tornadoes have been recorded in Stillwater County since 1950. That ranks 47 of 56 counties in Montana. The most recent was on August 11, 2005 (rated F0).
Strongest tornadoes in Stillwater County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 11, 2005 | F0 | Stillwater County | 9 mi | 50 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 11, 2005 | F0 | Stillwater County | 9 mi | 50 yd | 0 | 0 |
About Stillwater County
- Population: 9,450 (2024 estimate)
- State: Montana
- NOAA Weather Radio SAME code: 030095 (how to use it)