Grantsdale Weather Forecast

    • 31
    • 43

    Mostly Cloudy

    • 35
    • 47

    Mostly Cloudy

    • 30
    • 51

    Partly Sunny

    • 27
    • 50

    Mostly Sunny

    • 23
    • 46

    Mostly Sunny

    • 24
    • 42

    Mostly Sunny

    • 25
    • 45

    Mostly Sunny

Today 11 Jan Missoula/Bitterroot Valleys

Mostly cloudy. Highs near 40.

Tonight 11 Jan Missoula/Bitterroot Valleys

Mostly cloudy. Lows near 30.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grantsdale Temperature Statistics

January Temperature

Missoula, Missoula International Airport (49.1 miles)

  • Lowest 1 January, 2026

    16 °F

  • Average January

    31.2 °F

  • Highest 4 January, 2026

    48 °F

Climate (2021–Present)

Missoula, Missoula International Airport (49.1 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    47.4 °F

  • Average High 2021–2026

    59.5 °F
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