10-Day Weather Forecast - Roundup, MT

Decreasing clouds. Highs in the mid 50s. Southwest winds 5 to 10 mph.

Mostly cloudy. Lows in the mid 30s. Southwest winds 5 to 15 mph.

Partly sunny. Highs in the upper 50s. Southwest winds 10 to 20 mph.

Mostly cloudy. Lows in the lower 30s. Southwest winds 5 to 15 mph.

Partly sunny. Highs in the lower 50s.

Mostly cloudy. Lows around 30.

Mostly sunny. Highs in the lower 50s.

Mostly cloudy. Lows in the lower 30s.

Mostly cloudy. Highs in the upper 40s.

Mostly cloudy. Lows in the mid 20s.

Partly sunny. Highs in the lower 40s.

Mostly cloudy. Lows in the lower 20s.

Mostly sunny. Highs in the upper 30s.

Partly cloudy. Low temperature around 22F. Dew point will be around 10F with an average humidity of 56%. Winds will be 5 mph from the SW.

Partly cloudy. High temperature around 34F. Dew point will be around 11F with an average humidity of 44%. Winds will be 11 mph from the SW.

Mostly cloudy. Low temperature around 27F. Dew point will be around 13F with an average humidity of 50%. Winds will be 11 mph from the SW.

Partly cloudy. High temperature around 38F. Dew point will be around 16F with an average humidity of 45%. Winds will be 11 mph from the W.

Mostly cloudy. Low temperature around 28F. Dew point will be around 17F with an average humidity of 58%. Winds will be 5 mph from the W.