10-Day Weather Forecast - Sumatra, MT

Mostly sunny. Highs in the upper 80s. Southwest winds 5 to 10 mph.

Mostly cloudy. Lows in the lower 50s. Southeast winds 5 to 10 mph.

Partly sunny. Slight chance of rain showers early in the afternoon. Slight chance of showers and thunderstorms late in the afternoon. Highs in the mid 80s. Southwest winds 5 to 15 mph. Chance of precipitation 20 percent.

Colder. Slight chance of thunderstorms early in the evening. Chance of rain showers in the evening then rain showers overnight. Lows in the upper 30s. West winds 10 to 20 mph. Chance of precipitation 80 percent.

Rain showers in the morning then rain showers likely in the afternoon. Windy. Much colder. Highs in the upper 40s. Chance of precipitation 90 percent.

Mostly cloudy. Chance of rain showers in the evening then slight chance of snow showers overnight. Lows around 30. Chance of precipitation 30 percent.

Partly sunny with a 40 percent chance of snow showers. Highs in the mid 40s.

Mostly cloudy. A 20 percent chance of snow showers in the evening. Lows in the mid 20s.

Partly sunny. A 20 percent chance of snow showers in the afternoon. Highs in the mid 40s.

Partly cloudy. Lows in the mid 20s.

Mostly sunny. Highs in the lower 50s.

Partly cloudy. Lows in the upper 20s.

Mostly sunny. Highs in the upper 50s.

Partly cloudy. Low temperature around 33F. Dew point will be around 27F with an average humidity of 58%. Winds will be 3 mph from the E.

Mostly sunny. High temperature around 58F. Dew point will be around 29F with an average humidity of 49%. Winds will be 2 mph from the E.

Partly cloudy. Low temperature around 36F. Dew point will be around 30F with an average humidity of 56%. Winds will be 5 mph from the NE.

Partly cloudy. High temperature around 58F. Dew point will be around 31F with an average humidity of 49%. Winds will be 3 mph from the N.

Partly cloudy. Low temperature around 36F. Dew point will be around 32F with an average humidity of 62%. Winds will be 5 mph from the NE.