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Cooper Reservoir, WY Weather Forecast
Cooper Reservoir, WY Weather Forecast Date: 413 PM MDT Sat Aug 15 2026
The area/counties/county of: Sheridan Foothills, including the city of Sheridan.or toggle through each period.
Tonight... Partly cloudy. Chance of rain showers and slight chance of thunderstorms early in the evening, then slight chance of rain showers late in the evening. Areas of fog overnight. Widespread fog after 3 am. Lows in the upper 40s. South winds 5 to 10 mph in the evening becoming light overnight. Chance of precipitation 30%.
Sunday... Sunny. Widespread fog early in the morning. A 20% chance of showers and thunderstorms in the afternoon. Highs around 80. Light and variable winds in the morning becoming north 5 to 10 mph in the afternoon.
Sunday Night... Mostly cloudy. Slight chance of showers and thunderstorms early in the evening, then slight chance of rain showers late in the evening. Lows around 50. Light and variable winds. Chance of precipitation 20%.
Monday... Mostly sunny. Highs in the lower 80s. Light and variable winds in the morning becoming northeast 5 to 10 mph in the afternoon.
Monday Night... Mostly cloudy. Chance of rain showers and slight chance of thunderstorms early in the evening, then chance of rain showers in the late evening and overnight. Lows in the lower 50s. Southwest winds 5 to 10 mph. Chance of precipitation 50%.
Tuesday... Chance of rain showers in the morning, then rain showers likely and chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 60%.
Tuesday Night... Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening. Widespread fog after 3 am. Lows in the upper 40s. Chance of precipitation 50%.
Wednesday... Decreasing clouds. Highs in the lower 80s.
Wednesday Night... Partly cloudy. Lows around 50.
Thursday... Mostly sunny. Highs in the mid 80s.
Thursday Night... Mostly clear. Lows in the lower 50s.
Friday... Sunny. Highs in the upper 80s.
Friday Night... Mostly clear. Lows in the mid 50s.
POP = Probability of Precipitation
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