Mount Pilchuck State Forest Weather Forecast

    • 39
    • 50

    Increasing Clouds

    • 45
    • 49

    Mostly Cloudy

    • 44
    • 52

    Partly Sunny

    • 50
    • 63

    Partly Sunny

    • 45
    • 64

    Rain Likely

    • 41
    • 49

    Chance Rain

    • 40
    • 50

    Rain Likely

Today 12 Oct Cascades of Snohomish and Northern King Counties

Rain and snow likely. Snow level near 5500 feet. Afternoon pass Temperatures in the lower 40s.

Tonight 12 Oct Cascades of Snohomish and Northern King Counties

Mostly clear. Freezing level near 9500 feet. Lows in the lower 30s. Light wind.

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Mount Pilchuck State Forest Temperature Statistics

October Temperature

Arlington Municipal Airport (18.6 miles)

  • Lowest 10 October, 2026

    39.9 °F

  • Average October

    55.4 °F

  • Highest 2 October, 2026

    71.1 °F

Climate (2021–2026)

Arlington Municipal Airport (18.6 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.9 °F
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