Fremont County weather alerts
There are no active weather alerts for Fremont County, WY right now.
Since 2016 the National Weather Service has issued about 272 alerts that included Fremont County, roughly 27 a year. The most common is the severe thunderstorm warning (151 from 2016 to 2025). The last tornado warning was issued on June 25, 2026. 22 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 Natrona County, Park County, Sublette County, Sweetwater 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 | 151 | 25 | August 27, 2026 |
| Flood Advisory | 62 | 18 | September 20, 2026 |
| Flood Warning | 32 | 0 | June 21, 2023 |
| Flash Flood Warning | 10 | 1 | September 20, 2026 |
| Severe Thunderstorm Watch | 6 | 2 | June 20, 2026 |
| Tornado Warning | 6 | 1 | June 25, 2026 |
| Snow Squall Warning | 5 | 0 | February 25, 2025 |
Tornado history in Fremont County
22 tornadoes have been recorded in Fremont County since 1950, injuring 4 people. That ranks 13 of 23 counties in Wyoming. The most recent was on August 11, 2020 (rated EF0).
Strongest tornadoes in Fremont County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 16, 1962 | F3 | Fremont County | 0.5 mi | 67 yd | 0 | 0 |
| June 6, 1967 | F2 | Fremont County | 8.2 mi | 33 yd | 0 | 2 |
| June 7, 1986 | F2 | Fremont County | 2 mi | 50 yd | 0 | 0 |
| August 27, 1973 | F2 | Fremont County | 0.5 mi | 200 yd | 0 | 0 |
| June 6, 1968 | F1 | Fremont County | 3 mi | 50 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 11, 2020 | EF0 | Fremont County | 0.2 mi | 20 yd | 0 | 0 |
| May 28, 2018 | EF0 | Fremont County | 0.5 mi | 20 yd | 0 | 0 |
| May 6, 2014 | EF1 | Fremont County | 1.5 mi | 50 yd | 0 | 0 |
| May 6, 2014 | EF0 | Fremont County | 4.8 mi | 30 yd | 0 | 0 |
| June 3, 2009 | EF0 | Fremont County | 0.9 mi | 50 yd | 0 | 0 |
About Fremont County
- Population: 39,721 (2024 estimate)
- State: Wyoming
- NOAA Weather Radio SAME code: 056013 (how to use it)