Grantsdale Weather Forecast

    • 23
    • 43

    Rain/Snow

    • 20
    • 35

    Chance Snow

    • 33
    • 38

    Rain/Snow

    • 27
    • 42

    Chance Rain/Snow

    • 30
    • 41

    Rain/Snow Likely

    • 27
    • 43

    Chance Rain/Snow

Today 19 Dec Missoula/Bitterroot Valleys

Slight chance of snow. Rain likely in the morning. Chance of precipitation near 100 percent. Snow level 3500 feet. No snow accumulation. Highs in the lower 40s. West Winds 15 to 20 Mph with Gusts to around 30 Mph.

Tonight 19 Dec Missoula/Bitterroot Valleys

Mostly cloudy with a 40 percent chance of snow. Lows in the 20s. Southwest Winds to 15 Mph.

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Grantsdale Temperature Statistics

December Temperature

Missoula, Missoula International Airport (49.1 miles)

  • Lowest 1 December, 2025

    17.1 °F

  • Average December

    37.3 °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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