10-Day Weather Forecast - Grantsdale, MT

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  • 73|46°F
    Mostly Sunny
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    Today

    73°F

    Mostly sunny. Highs in the mid 70s to lower 80s.

    Tonight

    46°F

    Partly cloudy. Lows in the lower to mid 40s.

    Hourly details
  • Day

    77°F

    Partly cloudy. Highs in the upper 70s to mid 80s.

    Night

    47°F

    Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the 40s.

    Hourly details
  • Day

    56°F

    Rain likely in the morning then rain showers likely and a slight chance of thunderstorms in the afternoon. Chance of precipitation 90 percent. Cooler. Highs near 60. West winds to 15 mph.

    Night

    40°F

    Rain likely. Chance of rain 90 percent. Lows in the mid to upper 30s.

    Hourly details
  • Day

    48°F

    Rain likely in the morning then rain showers likely and a slight chance of thunderstorms in the afternoon. Chance of precipitation 70 percent. Highs near 50.

    Night

    30°F

    Mostly cloudy with a chance of rain. A chance of snow after midnight. Chance of precipitation 40 percent. Lows in the mid 20s to lower 30s.

    Hourly details
  • Day

    45°F

    Mostly cloudy. A chance of snow in the morning then slight chance of rain and snow in the afternoon. Chance of precipitation 30 percent. Highs near 50.

    Night

    27°F

    Partly cloudy. Lows in the mid to upper 20s.

    Hourly details
  • Weekend Weather

  • Day

    47°F

    Partly cloudy. Highs near 50.

    Night

    28°F

    Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 20s to lower 30s.

    Hourly details
  • Day

    50°F

    Partly cloudy. A 20 percent chance of rain in the afternoon. Highs in the lower 50s.

    Night

    35°F

    Mostly cloudy. Low temperature around 35F. Dew point will be around 26F with an average humidity of 61%. Winds will be 3 mph from the N.

  • Day

    57°F

    Mostly cloudy. High temperature around 57F. Dew point will be around 28F with an average humidity of 48%. Winds will be 4 mph from the NW.

    Night

    37°F

    Partly cloudy. Low temperature around 36F. Dew point will be around 30F with an average humidity of 59%. Winds will be 3 mph from the NW.

  • Day

    59°F

    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 59F. Dew point will be around 29F with an average humidity of 46%. Winds will be 4 mph from the NW.

    Night

    37°F

    Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 37F. Dew point will be around 31F with an average humidity of 60%. Winds will be 2 mph from the NW.

  • Day

    59°F

    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 59F. Dew point will be around 30F with an average humidity of 47%. Winds will be 4 mph from the NW.

    Night

    38°F

    Mostly cloudy. Low temperature around 38F. Dew point will be around 31F with an average humidity of 57%. Winds will be 3 mph from the NW.