Big Arm Weather Forecast

    • 60
    • 84

    Mostly Sunny

    • 59
    • 86

    Partly Sunny

    • 59
    • 83

    Mostly Sunny

    • 62
    • 86

    Mostly Sunny

    • 63
    • 88

    Partly Sunny

    • 64
    • 87

    Partly Sunny

    • 65
    • 87

    Partly Sunny

Today 7 Jul Flathead/Mission Valleys

Partly cloudy. Highs in the 80s to lower 90s.

Tonight 7 Jul Flathead/Mission Valleys

Mostly clear. Lows in the 50s to lower 60s.

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  • Temperature Real-Time

Big Arm Temperature Statistics

July Temperature

Kalispell, Glacier Park International Airport (34.8 miles)

  • Lowest 5 July, 2026

    41 °F

  • Average July

    63.2 °F

  • Highest 4 July, 2026

    83.6 °F

Climate (2021–2026)

Kalispell, Glacier Park International Airport (34.8 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    57 °F
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