Glacier National Park Weather Forecast

    • 49
    • 74

    Mostly Sunny

    • 50
    • 78

    Sunny

    • 51
    • 79

    Mostly Sunny

    • 51
    • 78

    Partly Sunny

    • 50
    • 75

    Partly Sunny

    • 45
    • 65

    Slight Chance Rain

Today 16 Sep West Glacier Region

Warmer. Mostly sunny. Highs 60 to 72. East Winds up to 10 Mph.

Tonight 16 Sep West Glacier Region

Mostly clear. Lows 43 to 49. East Winds up to 10 Mph.

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Glacier National Park Temperature Statistics

September Temperature

Kalispell, Glacier Park International Airport (37.9 miles)

  • Lowest 9 September, 2025

    44.1 °F

  • Average September

    67.1 °F

  • Highest 2 September, 2025

    93.2 °F

Climate (2020–Present)

Kalispell, Glacier Park International Airport (37.9 miles)

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  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    45.2 °F

  • Average High 2020–2025

    56.8 °F
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