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Fremont County, WY Weather Forecast
Fremont County, WY Weather Forecast Date: 932 PM MDT Fri Sep 18 2026
The area/counties/county of: Wind River Basin, including the cities of: Riverton and Shoshoni.or toggle through each period.
Tonight... Scattered showers late this evening. Partly cloudy with isolated thunderstorms. Some thunderstorms May produce gusty winds, small hail, and heavy rainfall. Lows in the lower 50s. North winds around 10 mph late this evening. Chance of rain 30%.
Saturday... Patchy fog in the morning. Partly cloudy with scattered showers. Isolated thunderstorms in the morning, then scattered thunderstorms in the afternoon. Some thunderstorms May produce gusty winds, small hail, and heavy rainfall in the morning. Some thunderstorms May produce gusty winds, small hail, and heavy rainfall in the afternoon. Highs in the upper 60s. Northwest winds around 10 mph with gusts up to 20 mph in the afternoon. Chance of rain 40%.
Saturday Night... Showers and scattered thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Patchy fog after midnight. Some thunderstorms May produce gusty winds, small hail, and heavy rainfall in the evening. Lows in the mid 40s. North winds 10 to 15 mph with gusts up to 25 mph, becoming northwest after midnight. Chance of rain 80%.
Sunday... Mostly cloudy in the morning, then becoming partly cloudy. A chance of showers with a slight chance of thunderstorms. Highs in the lower 60s. North winds around 10 mph with gusts up to 20 mph in the afternoon. Chance of rain 40%.
Sunday Night... Partly cloudy. Lows in the mid 40s.
Monday... Partly cloudy in the morning, then clearing. Highs around 70.
Monday Night... Mostly clear. Lows in the upper 40s.
Tuesday... Partly cloudy in the morning, then clearing. Highs in the mid 70s.
Tuesday Night... Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows around 50. Chance of rain 30%.
Wednesday... Partly cloudy in the morning, then clearing. Highs in the mid 70s.
Wednesday Night... Mostly clear. Lows around 50.
Thursday... Mostly sunny. Highs in the upper 70s.
Thursday Night... Mostly clear in the evening, then becoming partly cloudy. Lows around 50.
POP = Probability of Precipitation
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