Grantsdale Weather Forecast

    • 19
    • 38

    Mostly Sunny

    • 24
    • 40

    Mostly Sunny

    • 18
    • 40

    Partly Sunny

    • 22
    • 39

    Mostly Cloudy

    • 23
    • 41

    Chance Snow

    • 19
    • 35

    Snow Likely

    • 20
    • 34

    Chance Snow

Today 18 Jan Missoula/Bitterroot Valleys

Mostly sunny. Areas of freezing fog early in the morning. Patchy freezing fog late in the morning. Highs in the mid to upper 30s.

Tonight 18 Jan Missoula/Bitterroot Valleys

Mostly clear. Patchy fog after midnight. Lows 16 to 20.

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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

    31.4 °F

  • Highest 13 January, 2026

    55 °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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