10-Day Weather Forecast - Sumatra, MT

Mostly cloudy in the morning then becoming mostly sunny early in the afternoon then becoming mostly cloudy late in the afternoon. A 50 percent chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Northwest winds 5 to 15 mph.

Rain showers likely and chance of thunderstorms in the evening then chance of rain showers and slight chance of thunderstorms overnight. Slight chance of rain showers after 3 am. Lows in the lower 50s. West winds 5 to 10 mph. Chance of precipitation 70 percent.

Decreasing clouds. A 20 percent chance of rain showers early in the morning. Highs in the lower 70s. West winds 10 to 20 mph.

Mostly cloudy. Lows around 50. West winds 5 to 15 mph.

Partly sunny with a 50 percent chance of rain showers. Highs in the lower 70s. Southwest winds 5 to 15 mph in the morning increasing to west 15 to 25 mph in the afternoon.

Mostly cloudy. A 30 percent chance of rain showers in the evening. Lows in the lower 50s.

Mostly sunny. Highs in the upper 70s.

Partly cloudy. Lows in the lower 50s.

Mostly sunny. Highs in the mid 80s.

Partly cloudy. Lows in the mid 50s.

Mostly sunny. Highs around 90.

Partly cloudy. Lows around 60.

Mostly sunny. Highs in the lower 90s.

Clear. Low temperature around 63F. Dew point will be around 48F with an average humidity of 42%. Winds will be 5 mph from the NW.

Sunny. High temperature around 85F. Dew point will be around 48F with an average humidity of 38%. Winds will be 6 mph from the NW.

Clear. Low temperature around 61F. Dew point will be around 47F with an average humidity of 44%. Winds will be 5 mph from the N.

Sunny. High temperature around 89F. Dew point will be around 47F with an average humidity of 36%. Winds will be 2 mph from the SW.

Clear. Low temperature around 64F. Dew point will be around 47F with an average humidity of 39%. Winds will be 4 mph from the NE.