10-Day Weather Forecast - Westby, MT

Showers likely. A slight chance of thunderstorms in the afternoon. Highs around 70. East wind around 5 mph increasing to around 15 mph in the afternoon. Chance of rain 60 percent.

A chance of showers with a slight chance of thunderstorms in the evening then showers likely after midnight. Lows in the lower 50s. East wind 10 to 15 mph. Chance of rain 60 percent.

Mostly cloudy in the morning then becoming mostly sunny. Highs in the mid 70s. East wind 10 to 15 mph.

A slight chance of thunderstorms. Lows in the mid 50s.

A chance of thunderstorms. Highs around 80.

A slight chance of showers. Lows in the mid 50s.

Mostly clear. Highs in the lower 80s. Lows around 60.

Mostly clear. Highs in the lower 80s. Lows around 60.

Mostly clear. Highs in the upper 80s. Lows in the lower 60s.

Mostly clear. Highs in the upper 80s. Lows in the lower 60s.

Mostly clear. Highs in the upper 80s. Lows in the lower 60s.

Mostly clear. Low temperature around 64F. Dew point will be around 55F with an average humidity of 57%. Winds will be 7 mph from the E.

Sunny. High temperature around 86F. Dew point will be around 56F with an average humidity of 47%. Winds will be 3 mph from the SE.

Clear. Low temperature around 63F. Dew point will be around 57F with an average humidity of 62%. Winds will be 3 mph from the E.

Sunny. High temperature around 84F. Dew point will be around 56F with an average humidity of 49%. Winds will be 4 mph from the E.

Mostly clear. Low temperature around 62F. Dew point will be around 56F with an average humidity of 63%. Winds will be 4 mph from the E.

Sunny. High temperature around 83F. Dew point will be around 56F with an average humidity of 52%. Winds will be 2 mph from the NE.

Clear. Low temperature around 60F. Dew point will be around 55F with an average humidity of 65%. Winds will be 4 mph from the NE.