Fremont County weather alerts
There are no active weather alerts for Fremont County, ID right now.
Since 2016 the National Weather Service has issued about 102 alerts that included Fremont County, roughly 10 a year. The most common is the severe thunderstorm warning (57 from 2016 to 2025). The last tornado warning was issued on June 18, 2019. 5 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 Fremont County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Beaverhead County, Jefferson County, Gallatin County, Madison County.
Fremont County alert history
Alert events that included Fremont County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 57 | 11 | September 17, 2026 |
| Flood Advisory | 18 | 1 | July 22, 2026 |
| Flood Warning | 12 | 0 | May 17, 2023 |
| Tornado Warning | 6 | 0 | June 18, 2019 |
| Severe Thunderstorm Watch | 6 | 1 | May 13, 2026 |
| Snow Squall Warning | 2 | 0 | November 9, 2022 |
| Flash Flood Warning | 1 | 0 | August 14, 2022 |
Tornado history in Fremont County
5 tornadoes have been recorded in Fremont County since 1950. That ranks 17 of 44 counties in Idaho. The most recent was on April 1, 2025 (rated unknown).
Strongest tornadoes in Fremont County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 15, 1984 | F1 | Madison County | 8 mi | 10 yd | 0 | 0 |
| August 9, 1986 | F0 | Fremont County | 0.5 mi | 10 yd | 0 | 0 |
| September 17, 2013 | EF0 | Fremont County | 0.5 mi | 10 yd | 0 | 0 |
| July 2, 2004 | F0 | Fremont County | 0.2 mi | 20 yd | 0 | 0 |
| April 1, 2025 | ? | Fremont County | 0.1 mi | 10 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 1, 2025 | ? | Fremont County | 0.1 mi | 10 yd | 0 | 0 |
| September 17, 2013 | EF0 | Fremont County | 0.5 mi | 10 yd | 0 | 0 |
| July 2, 2004 | F0 | Fremont County | 0.2 mi | 20 yd | 0 | 0 |
| August 9, 1986 | F0 | Fremont County | 0.5 mi | 10 yd | 0 | 0 |
| May 15, 1984 | F1 | Madison County | 8 mi | 10 yd | 0 | 0 |
About Fremont County
- Population: 14,399 (2024 estimate)
- State: Idaho
- NOAA Weather Radio SAME code: 016043 (how to use it)