Weather WorldGrass Creek, WY 7-Day Night Weather Forecast
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Grass Creek, WY Weather Forecast
Grass Creek, WY Weather Forecast Date: 1231 AM MDT Thu Aug 13 2026
The area/counties/county of: Southwest Bighorn Basin, including the city of Thermopolis.or toggle through each period.
Rest of Tonight... Cloudy. Areas of smoke. Lows around 60. West winds 10 to 15 mph.
Thursday... Mostly cloudy. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Areas of smoke. Highs around 80. South winds around 10 mph with gusts up to 20 mph in the afternoon. Chance of rain 60%.
Thursday Night... Mostly cloudy with showers likely with a chance of thunderstorms in the evening, then partly cloudy after midnight. Patchy smoke. Lows in the upper 50s. Northwest winds around 10 mph with gusts up to 20 mph in the evening. Chance of rain 60%.
Friday... Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Northeast winds around 10 mph in the afternoon. Chance of rain 30%.
Friday Night... Partly cloudy with showers likely with a chance of thunderstorms in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the mid 50s. North winds around 10 mph with gusts up to 20 mph in the evening. Chance of rain 60%.
Saturday... Partly cloudy in the morning, then mostly sunny with showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 60%.
Saturday Night... Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 50s. Chance of rain 40%.
Sunday... Mostly sunny. A slight chance of. Highs in the lower 80s.
Sunday Night... Partly cloudy in the evening, then clearing. Lows in the mid 50s.
Monday... Mostly sunny. Highs in the lower 80s.
Monday Night... Partly cloudy. Lows in the mid 50s.
Tuesday... Partly cloudy. A slight chance of. Highs in the lower 80s.
Tuesday Night... Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 50s. Chance of rain 20%.
POP = Probability of Precipitation
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