Big Arm Weather Forecast

    • 36
    • 52

    Chance Snow

    • 33
    • 43

    Chance Snow

    • 33
    • 47

    Partly Sunny

    • 36
    • 52

    Partly Sunny

    • 39
    • 55

    Partly Sunny

    • 40
    • 57

    Partly Sunny

Today 10 Oct Flathead/Mission Valleys

Mostly cloudy with a 40 percent chance of Areas of rain. Cooler. Highs in the 50s. Northeast Winds 15 to 25 Mph in the afternoon.

Tonight 10 Oct Flathead/Mission Valleys

Mostly cloudy with a chance of snow. A chance of rain in the evening. Chance of precipitation 40 percent. Lows in the mid 20s to lower 30s. Northeast Winds 15 to 25 Mph with Gusts to around 35 Mph.

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Big Arm Temperature Statistics

October Temperature

Kalispell, Glacier Park International Airport (34.8 miles)

  • Lowest 8 October, 2026

    32 °F

  • Average October

    51.4 °F

  • Highest 5 October, 2026

    74.6 °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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