Deer Lake Weather Forecast

    • 47
    • 67

    Sunny

    • 45
    • 61

    Mostly Sunny

    • 49
    • 64

    Mostly Sunny

    • 48
    • 66

    Mostly Sunny

    • 46
    • 61

    Mostly Cloudy

    • 45
    • 57

    Mostly Cloudy

Today 17 Sep Cascades of Southern King County

Sunny. Freezing level near 13000 feet. Afternoon pass Temperatures in the lower 70s. Light wind in the Passes.

Tonight 17 Sep Cascades of Southern King County

Mostly clear. Freezing level near 13000 feet. Light wind in the Passes.

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Deer Lake Temperature Statistics

September Temperature

Stampede Pass (20.5 miles)

  • Lowest 3 September, 2026

    39.9 °F

  • Average September

    49.5 °F

  • Highest 9 September, 2026

    71.1 °F

Climate (2021–2026)

Stampede Pass (20.5 miles)

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  • Average Low 2021–2026

    36.1 °F

  • Average 2021–2026

    41.5 °F

  • Average High 2021–2026

    48.2 °F
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