Grantsdale Weather Forecast

    • 10
    • 29

    Snow Likely

    • 14
    • 27

    Mostly Sunny

    • 22
    • 35

    Mostly Cloudy

    • 25
    • 41

    Mostly Cloudy

    • 27
    • 44

    Mostly Cloudy

    • 27
    • 44

    Slight Chance Rain/Snow

Today 27 Dec Missoula/Bitterroot Valleys

Mostly cloudy with a 50 percent chance of snow. Highs near 30. West Winds to 15 Mph.

Tonight 27 Dec Missoula/Bitterroot Valleys

Partly cloudy. Lows 8 to 12.

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  • Temperature Real-Time

Grantsdale Temperature Statistics

December Temperature

Missoula, Missoula International Airport (49.1 miles)

  • Lowest 1 December, 2025

    17.1 °F

  • Average December

    36.1 °F

  • Highest 10 December, 2025

    55.9 °F

Climate (2020–Present)

Missoula, Missoula International Airport (49.1 miles)

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  • Average Low 2020–2025

    35.9 °F

  • Average 2020–2025

    47.4 °F

  • Average High 2020–2025

    59.5 °F
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