Sumatra, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    50% Chance of Rain
    51°
    Monday 5/13
    Forecast night icon
    51°
    50% Chance of Rain
    Hourly
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 51F. Dew point will be around 47F with an average humidity of 68%. Winds will be 8 mph from the NW.
  • Forecast day icon
    Tuesday
    50% Chance of Storms
    65°
    Forecast night icon
    Night
    40% Chance of Storms
    47°
    Tuesday 5/14
    Day
    65°
    50% Chance of Storms
    Forecast day icon
    Night
    47°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Northwest winds 5 to 15 mph. Chance of precipitation 50 percent.
    Night Details
    Mostly cloudy. Chance of showers and thunderstorms in the evening then slight chance of showers and thunderstorms overnight. Lows in the upper 40s. Northwest winds 5 to 15 mph. Chance of precipitation 40 percent.
  • Forecast day icon
    Wednesday
    30% Chance of Rain
    67°
    Forecast night icon
    Night
    50% Chance of Storms
    51°
    Wednesday 5/15
    Day
    67°
    30% Chance of Rain
    Forecast day icon
    Night
    51°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. A 30 percent chance of rain in the afternoon. Highs around 70. Northwest winds 5 to 10 mph.
    Night Details
    Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening then chance of rain overnight. Lows around 50. Southwest winds 5 to 10 mph. Chance of precipitation 50 percent.
  • Forecast day icon
    Thursday
    30% Chance Rain Showers
    71°
    Forecast night icon
    Night
    40% Chance Rain Showers
    51°
    Thursday 5/16
    Day
    71°
    30% Chance Rain Showers
    Forecast day icon
    Night
    51°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Slight chance of rain showers in the morning then chance of rain showers in the afternoon. Highs in the lower 70s. West winds 5 to 15 mph. Chance of precipitation 30 percent.
    Night Details
    Mostly cloudy with a 40 percent chance of rain showers. Lows in the upper 40s.
  • Forecast day icon
    Friday
    30% Chance Rain Showers
    69°
    Forecast night icon
    Night
    30% Chance Rain Showers
    46°
    Friday 5/17
    Day
    69°
    30% Chance Rain Showers
    Forecast day icon
    Night
    46°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Sunny in the morning then partly sunny with a 30 percent chance of rain showers in the afternoon. Highs in the upper 70s.
    Night Details
    Partly cloudy. Chance of rain showers in the evening then slight chance of rain showers overnight. Lows in the mid 40s. Chance of precipitation 30 percent.
  • Forecast day icon
    Saturday
    30% Chance of Storms
    61°
    Forecast night icon
    Night
    Partly Cloudy
    42°
    Saturday 5/18
    Day
    61°
    30% Chance of Storms
    Forecast day icon
    Night
    42°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Slight chance of rain showers in the morning then chance of rain showers and slight chance of thunderstorms in the afternoon. Cooler. Highs in the upper 60s. Chance of precipitation 30 percent.
    Night Details
    Partly cloudy. A 20 percent chance of rain showers in the evening. Lows in the mid 40s.
  • Forecast day icon
    Sunday
    Mostly Sunny
    65°
    Forecast night icon
    Night
    Partly Cloudy
    45°
    Sunday 5/19
    Day
    65°
    Mostly Sunny
    Forecast day icon
    Night
    45°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. A 20 percent chance of rain showers in the afternoon. Highs in the upper 60s.
    Night Details
    Partly cloudy. A 20 percent chance of rain showers in the evening. Lows in the mid 40s.
  • Forecast day icon
    Monday
    Mostly Sunny
    67°
    Forecast night icon
    Night
    40% Chance of Rain
    45°
    Monday 5/20
    Day
    67°
    Mostly Sunny
    Forecast day icon
    Night
    45°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny. A 20 percent chance of rain showers in the afternoon. Highs in the lower 70s.
    Night Details
    Mostly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 45F. Dew point will be around 38F with an average humidity of 58%. Winds will be 7 mph from the NE.
  • Forecast day icon
    Tuesday
    30% Chance of Rain
    66°
    Forecast night icon
    Night
    40% Chance of Rain
    47°
    Tuesday 5/21
    Day
    66°
    30% Chance of Rain
    Forecast day icon
    Night
    47°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 66F. Dew point will be around 40F with an average humidity of 52%. Winds will be 6 mph from the NW.
    Night Details
    Mostly cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 47F. Dew point will be around 40F with an average humidity of 59%. Winds will be 4 mph from the N.
  • Forecast day icon
    Wednesday
    30% Chance of Rain
    66°
    Forecast night icon
    Night
    40% Chance of Rain
    47°
    Wednesday 5/22
    Day
    66°
    30% Chance of Rain
    Forecast day icon
    Night
    47°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 66F. Dew point will be around 41F with an average humidity of 53%. Winds will be 5 mph from the NW.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 47F. Dew point will be around 42F with an average humidity of 64%. Winds will be 8 mph from the N.
  • Forecast day icon
    Thursday
    50% Chance of Rain
    60°
    Forecast night icon
    Night
    40% Chance of Rain
    45°
    Thursday 5/23
    Day
    60°
    50% Chance of Rain
    Forecast day icon
    Night
    45°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 60F. Dew point will be around 42F with an average humidity of 62%. Winds will be 9 mph from the NW.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 45F. Dew point will be around 42F with an average humidity of 73%. Winds will be 7 mph from the N.