Whitefish Weather Forecast

    • 41
    • 72

    Chance Rain

    • 34
    • 56

    Mostly Cloudy

    • 39
    • 60

    Partly Sunny

    • 40
    • 61

    Partly Sunny

    • 42
    • 59

    Mostly Cloudy

    • 41
    • 60

    Slight Chance Rain

Today 25 Sep Flathead/Mission Valleys

Mostly cloudy. A 50 percent chance of Areas of rain in the afternoon. Highs in the upper 60s to mid 70s. Southwest Winds 15 to 25 Mph. Gusts up to 30 Mph increasing to 40 Mph in the afternoon.

Tonight 25 Sep Flathead/Mission Valleys

Mostly cloudy in the evening then becoming partly cloudy. A 50 percent chance of rain. Lows in the upper 30s to mid 40s. Southwest Winds 15 to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Whitefish Temperature Statistics

September Temperature

Kalispell, Glacier Park International Airport (8.1 miles)

  • Lowest 17 September, 2026

    38.6 °F

  • Average September

    56.9 °F

  • Highest 1 September, 2026

    84.7 °F

Climate (2021–2026)

Kalispell, Glacier Park International Airport (8.1 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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