Musselshell, MT 7-Day Night Weather Forecast
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Musselshell, MT Weather Forecast


Musselshell, MT Weather Forecast Date: 350 PM MDT Thu Sep 17 2026
The area/counties/county of: Musselshell, including the city of Roundup.or toggle through each period.
Tonight... Decreasing clouds. Warmer. Lows in the mid 50s. Southwest winds 5 to 10 mph.
Friday... Mostly sunny. Chance of rain showers and isolated thunderstorms late in the afternoon. Highs in the upper 70s. West winds 5 to 10 mph in the morning shifting to the northeast 5 to 15 mph in the afternoon. Chance of precipitation 30%.
Friday Night... Scattered thunderstorms and chance of rain showers in the evening, then rain showers and isolated thunderstorms overnight. Patchy fog overnight. Some thunderstorms May produce heavy rainfall in the evening. Some thunderstorms May produce heavy rainfall overnight. Lows in the mid 50s. North winds 5 to 15 mph. Chance of precipitation 80%.
Saturday... Patchy fog early in the morning. Rain showers and isolated thunderstorms in the morning, then rain showers and scattered thunderstorms in the afternoon. Cooler. Some thunderstorms May produce heavy rainfall in the morning. Some thunderstorms May produce heavy rainfall in the afternoon. Highs in the lower 60s. Northeast winds 10 to 20 mph. Chance of precipitation 90%.
Saturday Night... Patchy fog through the night. Scattered thunderstorms early in the evening. Rain showers through the night. Isolated thunderstorms late in the evening. Some thunderstorms May produce heavy rainfall early in the evening. Some thunderstorms May produce heavy rainfall late in the evening. Lows in the lower 50s. North winds 5 to 15 mph. Chance of precipitation 90%.
Sunday... Decreasing clouds. Patchy fog early in the morning. Rain showers likely in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 60%.
Sunday Night... Partly cloudy. Lows in the upper 40s.
Monday... Decreasing clouds. Highs in the lower 70s.
Monday Night... Mostly clear. Lows around 50.
Tuesday... Sunny. Highs in the upper 70s.
Tuesday Night... Mostly clear. Lows around 50.
Wednesday... Sunny. Highs in the mid 70s.
Wednesday Night... Mostly clear. Lows in the upper 40s.
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