Big Arm Weather Forecast

    • 47
    • 68

    Mostly Sunny

    • 51
    • 73

    Mostly Sunny

    • 58
    • 79

    Partly Sunny

    • 55
    • 81

    Mostly Sunny

    • 52
    • 75

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

    • 55
    • 79

    Partly Sunny

Today 13 Jun Flathead/Mission Valleys

Mostly sunny. Highs in the mid 60s to lower 70s.

Tonight 13 Jun Flathead/Mission Valleys

Mostly clear. A 20 percent chance of rain early in the evening. Lows in the upper 30s to mid 40s.

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Big Arm Temperature Statistics

June Temperature

Kalispell, Glacier Park International Airport (34.8 miles)

  • Lowest 8 June, 2026

    36.6 °F

  • Average June

    54.1 °F

  • Highest 5 June, 2026

    73.7 °F

Climate (2021–Present)

Kalispell, Glacier Park International Airport (34.8 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    57.2 °F
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