Grantsdale Weather Forecast

    • 41
    • 63

    Mostly Cloudy

    • 44
    • 68

    Mostly Sunny

    • 43
    • 69

    Chance Rain

    • 30
    • 56

    Chance Rain

    • 31
    • 53

    Mostly Sunny

    • 36
    • 58

    Mostly Cloudy

Today 18 Mar Missoula/Bitterroot Valleys

Partly cloudy. Highs in the mid 50s to lower 60s. Southwest Winds 15 to 25 Mph.

Tonight 18 Mar Missoula/Bitterroot Valleys

Mostly cloudy. Lows in the mid 30s to lower 40s.

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Grantsdale Temperature Statistics

March Temperature

Missoula, Missoula International Airport (49.1 miles)

  • Lowest 15 March, 2026

    18 °F

  • Average March

    37.4 °F

  • Highest 3 March, 2026

    60.7 °F

Climate (2021–Present)

Missoula, Missoula International Airport (49.1 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    59.7 °F
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