Grantsdale, Montana | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Sunday
    Mostly Sunny
    76°
    Forecast night icon
    Night
    Mostly Clear
    47°
    Sunday 5/12
    Day
    76°
    Mostly Sunny
    Forecast day icon
    Night
    47°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. High temperature around 76F. Dew point will be around 40F with an average humidity of 50%. Winds will be 8 mph from the S.
    Night Details
    Mostly clear. Lows in the mid 40s to lower 50s. Northwest winds to 15 mph in the evening.
  • Forecast day icon
    Monday
    30% Chance of Storms
    70°
    Forecast night icon
    Night
    Partly Cloudy
    50°
    Monday 5/13
    Day
    70°
    30% Chance of Storms
    Forecast day icon
    Night
    50°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny in the morning then mostly cloudy with a chance of rain showers and a slight chance of thunderstorms in the afternoon. Chance of precipitation 30 percent. Highs in the lower to mid 70s. Southwest winds 15 to 20 mph.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 40s to lower 50s. West winds 15 to 20 mph.
  • Forecast day icon
    Tuesday
    40% Chance of Storms
    65°
    Forecast night icon
    Night
    Partly Cloudy
    46°
    Tuesday 5/14
    Day
    65°
    40% Chance of Storms
    Forecast day icon
    Night
    46°
    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 40 percent. Highs near 70. West winds to 15 mph.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. Lows in the 40s. West winds to 15 mph.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    70°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Wednesday 5/15
    Day
    70°
    Partly Cloudy
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Highs in the lower to mid 70s.
    Night Details
    Partly cloudy. Lows in the mid 40s to lower 50s.
  • Forecast day icon
    Thursday
    Partly Cloudy
    71°
    Forecast night icon
    Night
    Mostly Clear
    46°
    Thursday 5/16
    Day
    71°
    Partly Cloudy
    Forecast day icon
    Night
    46°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Highs in the mid to upper 70s.
    Night Details
    Mostly clear. A 20 percent chance of rain in the evening. Lows in the mid 40s to lower 50s.
  • Forecast day icon
    Friday
    Partly Cloudy
    64°
    Forecast night icon
    Night
    Partly Cloudy
    45°
    Friday 5/17
    Day
    64°
    Partly Cloudy
    Forecast day icon
    Night
    45°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 20 percent chance of rain. Highs near 70.
    Night Details
    Partly cloudy with a 20 percent chance of rain. Lows in the lower to mid 40s.
  • Forecast day icon
    Saturday
    30% Chance of Rain
    53°
    Forecast night icon
    Night
    Partly Cloudy
    43°
    Saturday 5/18
    Day
    53°
    30% Chance of Rain
    Forecast day icon
    Night
    43°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy with a 30 percent chance of rain. Highs in the lower to mid 60s.
    Night Details
    Partly cloudy. A 20 percent chance of rain in the evening. Lows near 40.
  • Forecast day icon
    Sunday
    Partly Cloudy
    65°
    Forecast night icon
    Night
    Mostly Clear
    44°
    Sunday 5/19
    Day
    65°
    Partly Cloudy
    Forecast day icon
    Night
    44°
    Mostly Clear
    Forecast night icon
    Day Details
    Partly cloudy. A 20 percent chance of rain in the afternoon. Highs in the mid to upper 60s.
    Night Details
    Mostly clear. Low temperature around 44F. Dew point will be around 33F with an average humidity of 48%. Winds will be 4 mph from the NW.
  • Forecast day icon
    Monday
    30% Chance of Rain
    64°
    Forecast night icon
    Night
    30% Chance of Rain
    44°
    Monday 5/20
    Day
    64°
    30% Chance of Rain
    Forecast day icon
    Night
    44°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 64F. Dew point will be around 35F with an average humidity of 44%. Winds will be 4 mph from the NW.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 44F. Dew point will be around 34F with an average humidity of 51%. Winds will be 4 mph from the NW.
  • Forecast day icon
    Tuesday
    30% Chance of Rain
    61°
    Forecast night icon
    Night
    40% Chance of Rain
    44°
    Tuesday 5/21
    Day
    61°
    30% Chance of Rain
    Forecast day icon
    Night
    44°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 61F. Dew point will be around 37F with an average humidity of 51%. Winds will be 5 mph from the NW.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 44F. Dew point will be around 35F with an average humidity of 57%. Winds will be 5 mph from the NW.