Fallon County weather alerts
There are no active weather alerts for Fallon County, MT right now.
Since 2016 the National Weather Service has issued about 495 alerts that included Fallon County, roughly 50 a year. The most common is the severe thunderstorm warning (94 from 2016 to 2025). The last tornado warning was issued on July 10, 2016. 15 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 Fallon County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Slope County, Wibaux County, Custer County, Carter County.
Recent alerts in Fallon County
| Issued | Alert | Area |
|---|---|---|
| Nov 14, 4:02 AM EST | Dense Fog Advisory | Fallon; Carter |
Fallon County alert history
Alert events that included Fallon County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 94 | 13 | September 3, 2026 |
| Winter Weather Advisory | 92 | 3 | March 14, 2026 |
| Severe Thunderstorm Watch | 76 | 9 | August 30, 2026 |
| Cold Weather Advisory | 54 | 2 | January 25, 2026 |
| High Wind Warning | 32 | 5 | September 14, 2026 |
| Winter Storm Watch | 30 | 2 | April 2, 2026 |
| Dense Fog Advisory | 23 | 7 | November 14, 2026 |
| High Wind Watch | 19 | 2 | March 11, 2026 |
| Winter Storm Warning | 16 | 2 | April 2, 2026 |
| Heat Advisory | 13 | 0 | August 19, 2025 |
| Flood Watch | 10 | 1 | September 19, 2026 |
| Extreme Cold Warning | 8 | 0 | February 17, 2025 |
| Blizzard Warning | 6 | 0 | March 11, 2023 |
| Flood Advisory | 6 | 0 | August 3, 2023 |
| Extreme Heat Warning | 5 | 3 | August 1, 2026 |
| Tornado Watch | 3 | 0 | June 29, 2020 |
| Extreme Heat Watch | 3 | 3 | August 1, 2026 |
| Tornado Warning | 2 | 0 | July 10, 2016 |
| Flash Flood Warning | 2 | 0 | July 4, 2022 |
| Flood Warning | 1 | 0 | April 12, 2018 |
Tornado history in Fallon County
15 tornadoes have been recorded in Fallon County since 1950, injuring 7 people. That ranks 9 of 56 counties in Montana. The most recent was on July 10, 2016 (rated EF0).
Strongest tornadoes in Fallon County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 19, 1952 | F3 | Fallon County | 55.5 mi | 10 yd | 0 | 0 |
| June 11, 2016 | EF3 | Fallon County | 3 mi | 200 yd | 0 | 7 |
| July 18, 1962 | F2 | Prairie County | 40.6 mi | 10 yd | 0 | 0 |
| June 20, 1999 | F2 | Fallon County | 5 mi | 300 yd | 0 | 0 |
| July 25, 2001 | F2 | Fallon County | 2 mi | 200 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 10, 2016 | EF0 | Fallon County | 0.5 mi | 50 yd | 0 | 0 |
| July 6, 2016 | EF0 | Fallon County | 0.3 mi | 25 yd | 0 | 0 |
| June 11, 2016 | EF3 | Fallon County | 3 mi | 200 yd | 0 | 7 |
| June 21, 2015 | EF0 | Fallon County | 1 mi | 50 yd | 0 | 0 |
| June 3, 2013 | EF0 | Fallon County | 1 mi | 50 yd | 0 | 0 |
About Fallon County
- Population: 2,946 (2024 estimate)
- State: Montana
- NOAA Weather Radio SAME code: 030025 (how to use it)