Sunset Bay Weather Forecast

    • 56
    • 76

    Breezy

    • 57
    • 77

    Sunny

    • 62
    • 82

    Mostly Sunny

    • 61
    • 80

    Chance Rain Showers

    • 59
    • 76

    Chance Rain

    • 58
    • 73

    Chance Rain

Today 4 Sep Flathead/Mission Valleys

Mostly sunny. Areas of smoke through the day. Not as warm. Highs in the mid 70s to lower 80s. Northeast Winds 15 to 20 Mph.

Tonight 4 Sep Flathead/Mission Valleys

Mostly clear. Areas of smoke in the evening. Haze after midnight. Lows in the mid 40s to lower 50s. Northeast Winds 15 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sunset Bay Temperature Statistics

September Temperature

Kalispell, Glacier Park International Airport (34.2 miles)

  • Lowest 1 September, 2025

    62.6 °F

  • Average September

    76.3 °F

  • Highest 1 September, 2025

    91.4 °F

Climate (2020–Present)

Kalispell, Glacier Park International Airport (34.2 miles)

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  • Average Low 2020–2025

    33 °F

  • Average 2020–2025

    45.1 °F

  • Average High 2020–2025

    56.8 °F
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