Snoqualmie Lake Weather Forecast

    • 53
    • 70

    Becoming Sunny

    • 54
    • 67

    Mostly Sunny

    • 51
    • 69

    Partly Sunny

    • 50
    • 62

    Chance Rain

    • 49
    • 55

    Chance Rain

    • 50
    • 61

    Chance Rain

Today 17 Sep Cascades of Southern King County

Sunny. Freezing level near 14000 feet. Afternoon pass Temperatures in the lower 70s. Light wind in the Passes.

Tonight 17 Sep Cascades of Southern King County

Partly cloudy. Freezing level near 13500 feet. Light wind in the Passes.

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  • Temperature Real-Time

Snoqualmie Lake Temperature Statistics

September Temperature

Stampede Pass (19.9 miles)

  • Lowest 14 September, 2025

    44.1 °F

  • Average September

    59.7 °F

  • Highest 2 September, 2025

    87.1 °F

Climate (2020–Present)

Stampede Pass (19.9 miles)

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  • Average Low 2020–2025

    36.3 °F

  • Average 2020–2025

    41.6 °F

  • Average High 2020–2025

    48.3 °F
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