10-Day Weather Forecast - Fort Harrison, MT

Mostly sunny. A 50 percent chance of thunderstorms in the afternoon. Highs in the upper 80s. Southeast winds up to 10 mph.

Mostly cloudy with chance of rain showers and slight chance of thunderstorms in the evening then mostly clear after midnight. Lows in the mid 50s. Southwest winds up to 10 mph. Chance of precipitation 40 percent.

Sunny. Highs in the mid 80s. West winds up to 10 mph.

Mostly clear. Lows in the mid 50s.

Sunny. Highs around 90.

Mostly clear. Lows in the upper 50s.

Sunny. Highs in the upper 90s.

Mostly clear. Lows in the lower 60s. Highs in the mid 90s.

Mostly clear. Lows in the lower 60s. Highs in the mid 90s.

Partly cloudy. Lows in the mid 60s.

Sunny. Highs in the lower 90s.

Partly cloudy with widely scattered thunderstorms. Chance of storms 25%. Low temperature around 64F. Dew point will be around 54F with an average humidity of 51%. Winds will be 6 mph from the W.

Mostly sunny with scattered thunderstorms. Chance of storms 40%. High temperature around 91F. Dew point will be around 54F with an average humidity of 41%. Winds will be 3 mph from the NE.

Mostly clear with a 40% chance for rain and thunderstorms. Low temperature around 63F. Dew point will be around 54F with an average humidity of 52%. Winds will be 5 mph from the W.

Sunny with scattered thunderstorms. Chance of storms 45%. High temperature around 91F. Dew point will be around 55F with an average humidity of 44%. Winds will be 4 mph from the NE.

Partly cloudy with a 35% chance for rain and thunderstorms. Low temperature around 64F. Dew point will be around 55F with an average humidity of 52%. Winds will be 5 mph from the W.

Sunny. High temperature around 90F. Dew point will be around 56F with an average humidity of 46%. Winds will be 4 mph from the NE.

Clear. Low temperature around 63F. Dew point will be around 56F with an average humidity of 56%. Winds will be 5 mph from the W.