Derrick Lake Weather Forecast

    • 38
    • 40

    Rain/Snow

    • 38
    • 42

    Chance Rain/Snow

    • 41
    • 51

    Partly Sunny

    • 41
    • 47

    Rain

    • 42
    • 47

    Rain

    • 38
    • 43

    Rain/Snow

Today 19 Oct Cascades of Southern King County

Rain and snow likely in the Morning, then rain and snow in the afternoon. Snow level near 5000 feet. Rainfall Amounts one to three Inches possible. Snow accumulation up to 2 Inches. Afternoon pass Temperatures in the lower 40s. Southwest wind in the Passes around 10 Mph becoming west in the afternoon. Gusts to 25 Mph.

Tonight 19 Oct Cascades of Southern King County

Showers, a slight chance of Thunderstorms and Showers in the Evening, then rain and snow likely after midnight. Snow level near 5000 feet. Rainfall Amounts a half inch to one inch Possible, except higher Amounts possible in Thunderstorms. Snow accumulation up to 1 inch. Total snow accumulation up to 3 Inches. West wind in the Passes around 10 Mph with Gusts to 25 Mph.

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Derrick Lake Temperature Statistics

October Temperature

Stampede Pass (16.8 miles)

  • Lowest 14 October, 2025

    28 °F

  • Average October

    42.2 °F

  • Highest 6 October, 2025

    59 °F

Climate (2020–Present)

Stampede Pass (16.8 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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