Grantsdale, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    40% Chance of Storms
    35°
    Friday 5/17
    Forecast night icon
    35°
    40% Chance of Storms
    Hourly
    Night Details
    Mostly clear. Chance of rain showers and a slight chance of thunderstorms early in the evening then areas of rain late in the evening. Chance of precipitation 40 percent. Lows in the 30s. West winds 15 to 25 mph with gusts to around 45 mph in the evening.
  • Forecast day icon
    Saturday
    Partly Cloudy
    62°
    Forecast night icon
    Night
    Partly Cloudy
    42°
    Saturday 5/18
    Day
    62°
    Partly Cloudy
    Forecast day icon
    Night
    42°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Highs in the lower 60s. Southwest winds 15 to 20 mph with gusts to around 30 mph.
    Night Details
    Partly cloudy in the evening then mostly cloudy with a 20 percent chance of rain after midnight. Lows in the mid 30s to lower 40s. West winds 15 to 20 mph with gusts to around 30 mph.
  • Forecast day icon
    Sunday
    70% Chance of Storms
    52°
    Forecast night icon
    Night
    Partly Cloudy
    37°
    Sunday 5/19
    Day
    52°
    70% Chance of Storms
    Forecast day icon
    Night
    37°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    A chance of rain in the morning then rain showers likely and a slight chance of thunderstorms in the afternoon. Chance of precipitation 70 percent. Highs in the lower to mid 50s.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of rain. Lows in the mid to upper 30s. West winds to 15 mph.
  • Forecast day icon
    Monday
    50% Chance of Storms
    57°
    Forecast night icon
    Night
    Partly Cloudy
    40°
    Monday 5/20
    Day
    57°
    50% Chance of Storms
    Forecast day icon
    Night
    40°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Slight chance of rain in the morning then chance of rain showers and a slight chance of thunderstorms in the afternoon. Chance of precipitation 50 percent. Highs near 60.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. Areas of frost after midnight. Lows in the mid to upper 30s.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    61°
    Forecast night icon
    Night
    30% Chance of Rain
    44°
    Tuesday 5/21
    Day
    61°
    Partly Cloudy
    Forecast day icon
    Night
    44°
    30% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Areas of frost in the morning. A 20 percent chance of rain in the afternoon. Highs in the mid to upper 60s.
    Night Details
    Mostly cloudy with a 30 percent chance of rain. Lows in the lower to mid 40s.
  • Forecast day icon
    Wednesday
    80% Chance of Storms
    58°
    Forecast night icon
    Night
    60% Chance of Rain
    41°
    Wednesday 5/22
    Day
    58°
    80% Chance of Storms
    Forecast day icon
    Night
    41°
    60% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    A chance of rain in the morning then rain showers likely and a slight chance of thunderstorms in the afternoon. Chance of precipitation 80 percent. Highs near 60.
    Night Details
    Rain likely in the evening then a chance of rain after midnight. Chance of rain 60 percent. Lows near 40.
  • Forecast day icon
    Thursday
    70% Chance of Rain
    54°
    Forecast night icon
    Night
    40% Chance of Rain
    42°
    Thursday 5/23
    Day
    54°
    70% Chance of Rain
    Forecast day icon
    Night
    42°
    40% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    A chance of rain in the morning then rain likely in the afternoon. Chance of rain 70 percent. Highs in the mid to upper 50s.
    Night Details
    Mostly cloudy with a 40 percent chance of rain. Lows near 40.
  • Forecast day icon
    Friday
    40% Chance of Rain
    57°
    Forecast night icon
    Night
    40% Chance of Rain
    44°
    Friday 5/24
    Day
    57°
    40% Chance of Rain
    Forecast day icon
    Night
    44°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a 40 percent chance of rain. Highs in the lower 60s.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 44F. Dew point will be around 36F with an average humidity of 61%. Winds will be 4 mph from the NW.
  • Forecast day icon
    Saturday
    50% Chance of Rain
    61°
    Forecast night icon
    Night
    30% Chance of Rain
    45°
    Saturday 5/25
    Day
    61°
    50% Chance of Rain
    Forecast day icon
    Night
    45°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 61F. Dew point will be around 38F with an average humidity of 54%. Winds will be 5 mph from the W.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 45F. Dew point will be around 36F with an average humidity of 55%. Winds will be 4 mph from the NW.
  • Forecast day icon
    Sunday
    30% Chance of Rain
    65°
    Forecast night icon
    Night
    30% Chance of Rain
    46°
    Sunday 5/26
    Day
    65°
    30% Chance of Rain
    Forecast day icon
    Night
    46°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 65F. Dew point will be around 38F with an average humidity of 48%. Winds will be 5 mph from the NW.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 46F. Dew point will be around 36F with an average humidity of 53%. Winds will be 4 mph from the NW.