Mount Pilchuck State Forest Weather Forecast

    • 41
    • 52

    Rain Likely

    • 43
    • 49

    Chance Rain

    • 48
    • 58

    Partly Sunny

    • 44
    • 60

    Mostly Cloudy

    • 40
    • 46

    Chance Rain

    • 39
    • 47

    Partly Sunny

Today 25 May Cascades of Snohomish and Northern King Counties

Mostly cloudy. A chance of rain and snow in the afternoon. Snow level near 6500 feet. Afternoon pass Temperatures in the upper 50s. Light wind.

Tonight 25 May Cascades of Snohomish and Northern King Counties

Cloudy with a chance of rain and snow in the Evening, then mostly cloudy with a slight chance of rain and snow after midnight. Snow level near 6000 feet decreasing to 5000 feet after midnight. No snow accumulation. Lows in the upper 30s. Light wind. Gusts to 20 Mph in the evening.

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Mount Pilchuck State Forest Temperature Statistics

May Temperature

Arlington Municipal Airport (18.6 miles)

  • Lowest 18 May, 2026

    42.1 °F

  • Average May

    56.6 °F

  • Highest 12 May, 2026

    84 °F

Climate (2021–Present)

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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