Alpental Ski Area Weather Forecast

    • 60
    • 79

    Sunny

    • 62
    • 84

    Mostly Sunny

    • 60
    • 83

    Partly Sunny

    • 60
    • 81

    Mostly Sunny

    • 58
    • 79

    Mostly Sunny

    • 55
    • 76

    Mostly Sunny

Today 22 Aug Cascades of Southern King County

Sunny. Freezing level near 15500 feet. Afternoon pass Temperatures in the mid 80s. Light wind in the Passes.

Tonight 22 Aug Cascades of Southern King County

Clear. Freezing level near 15500 feet. Light wind in the Passes.

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Alpental Ski Area Temperature Statistics

August Temperature

Stampede Pass (11.8 miles)

  • Lowest 8 August, 2025

    43 °F

  • Average August

    56.4 °F

  • Highest 11 August, 2025

    84 °F

Climate (2020–Present)

Stampede Pass (11.8 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    41.5 °F

  • Average High 2020–2025

    48.3 °F
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