Sweetwater County weather, town by town
19 places in Sweetwater County, Wyoming, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1891 to 2026. Station extremes, not official state records.
Sweetwater County Weather Facts
Sweetwater County has 19 places on myweatherrock (13 census-designated places, 4 towns, 2 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 105°F at Wamsutter on July 28, 1897. The coldest night is -52°F at Farson 2Nne on December 31, 1978. The wettest day brought 4.2 inches of rain at Manila on March 21, 1932. The biggest single-day snow measured 24.02 inches at Manila on March 21, 1932. Those are station measurements from NOAA's daily records, 1891 to 2026, not official state records. By area the largest place is Farson, about 24 square miles.
About Sweetwater County weather
The map on the Now tab shows every Sweetwater County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 19 Sweetwater County towns with station normals, the warmest month is July, when the day usually reaches 85°F, and the coldest is January, when the night usually falls to 9°F. May is the wettest, with rain on about 8 days. July afternoons run from about 72°F in McKinnon to 88°F in Green River. January nights run from about -4°F in Eden to 13°F in Arrowhead Springs.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
Sweetwater County weather records
Measured at the NOAA stations serving these towns, daily records 1891 to 2026. Station extremes, not official state records.
Common questions about Sweetwater County weather
- What is the hottest temperature recorded at a Sweetwater County station?
- 105°F at Wamsutter on July 28, 1897, in the NOAA daily station records myweatherrock holds (1891 to 2026).
- What is the coldest temperature recorded at a Sweetwater County station?
- -52°F at Farson 2Nne on December 31, 1978.
- What is the most rain a Sweetwater County station has measured in one day?
- 4.2 inches at Manila on March 21, 1932.
- What is the biggest one-day snowfall at a Sweetwater County station?
- 24.02 inches at Manila on March 21, 1932.
- How many Sweetwater County towns have a weather page here?
- 19: 13 census-designated places, 4 towns, 2 cities. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the Sweetwater County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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