Olallie Lake Weather Forecast

    • 36
    • 38

    Rain

    • 31
    • 43

    Rain

    • 34
    • 37

    Rain/Snow

    • 35
    • 39

    Rain/Snow

    • 38
    • 40

    Rain/Snow Likely

    • 37
    • 41

    Rain Likely

    • 35
    • 40

    Rain/Snow Likely

Today 7 Dec Cascades of Southern King County

Patchy dense fog in the morning. Rain and snow through the day. Snow level near 6000 feet. Rainfall Amounts a half inch to one inch possible. Snow accumulation up to 2 Inches. Afternoon pass Temperatures around 40. Light wind in the Passes. Gusts to 25 Mph in the afternoon.

Tonight 7 Dec Cascades of Southern King County

Rain and snow in the Evening, then rain and snow likely after midnight. Snow level near 5000 feet. Rainfall Amounts a quarter to a half inch possible. No snow accumulation. West wind in the Passes around 10 Mph in the evening becoming light. Gusts to 25 Mph.

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Olallie Lake Temperature Statistics

December Temperature

Stampede Pass (12.4 miles)

  • Lowest 1 December, 2025

    23 °F

  • Average December

    31.7 °F

  • Highest 5 December, 2025

    42.1 °F

Climate (2020–Present)

Stampede Pass (12.4 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    41.5 °F

  • Average High 2020–2025

    48.2 °F
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