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City of Roundup, MTRoundup, MT 7-Day Night Weather Forecast
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Roundup, MT Weather Forecast
Roundup, MT Weather Forecast Date: 622 AM MDT Tue Oct 27 2026
The area/counties/county of: Musselshell, including the city of Roundup.or toggle through each period.
Today... Decreasing clouds. Scattered rain showers early in the morning. Highs in the upper 50s. West winds 15 to 25 mph. Chance of precipitation 40%.
Tonight... Mostly clear. Lows in the lower 30s. Southwest winds 5 to 15 mph.
Wednesday... Sunny. Highs in the upper 50s. Southwest winds 5 to 15 mph.
Wednesday Night... Partly cloudy. Lows in the upper 20s. Light and variable winds.
Thursday... Mostly sunny. Highs around 50. West winds 5 to 10 mph in the morning shifting to the northeast 5 to 15 mph in the afternoon.
Thursday Night... Mostly cloudy. Lows in the upper 20s.
Friday... Mostly cloudy. Highs in the upper 40s.
Friday Night... Mostly cloudy. Lows in the upper 20s.
Saturday... Partly sunny. Highs in the lower 50s.
Saturday Night... Mostly cloudy. Slight chance of rain showers in the evening, then chance of rain showers overnight. Lows in the lower 30s. Chance of precipitation 40%.
Sunday... Partly sunny with a 50% chance of rain showers. Highs in the lower 50s.
Sunday Night... Mostly cloudy. Chance of rain showers through the night. Chance of snow showers overnight. Lows around 30. Chance of precipitation 50%.
POP = Probability of Precipitation
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