Mount Pilchuck State Forest Weather Forecast

    • 46
    • 56

    Mostly Sunny

    • 47
    • 65

    Increasing Clouds

    • 36
    • 52

    Chance Rain Showers

    • 36
    • 48

    Partly Sunny

    • 42
    • 58

    Mostly Cloudy

    • 41
    • 57

    Chance Rain Showers

    • 39
    • 47

    Chance Rain/Snow

Today 5 May Cascades of Snohomish and Northern King Counties

Sunny. Freezing level near 8000 feet. Afternoon pass Temperatures in the upper 50s. Light wind.

Tonight 5 May Cascades of Snohomish and Northern King Counties

Mostly clear. Freezing level near 8500 feet increasing to 10000 feet after midnight. Lows in the upper 30s. Light wind.

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Mount Pilchuck State Forest Temperature Statistics

May Temperature

Arlington Municipal Airport (18.6 miles)

  • Lowest 1 May, 2025

    37.9 °F

  • Average May

    54.7 °F

  • Highest 2 May, 2025

    73 °F

Climate (2020–Present)

Arlington Municipal Airport (18.6 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    50.5 °F

  • Average High 2020–2025

    59.5 °F
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