Sulphur Mountain Lake Weather Forecast

    • 33
    • 40

    Chance Rain/Snow

    • 30
    • 34

    Chance Snow

    • 32
    • 35

    Chance Snow

    • 34
    • 38

    Snow Likely

    • 35
    • 42

    Snow

    • 35
    • 41

    Chance Rain/Snow

Today 13 May Cascades of Snohomish and Northern King Counties

Mostly cloudy. A slight chance of rain and snow in the morning. A slight chance of rain late in the afternoon. Snow level near 6500 feet. Afternoon pass Temperatures in the upper 40s. Light wind becoming west around 10 Mph in the afternoon.

Tonight 13 May Cascades of Snohomish and Northern King Counties

Mostly cloudy. A slight chance of rain and snow in the Evening, then a chance of rain and snow after midnight. Snow level near 6500 feet. Lows in the upper 30s. West wind in the Passes around 10 Mph.

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Sulphur Mountain Lake Temperature Statistics

May Temperature

Arlington Municipal Airport (49.7 miles)

  • Lowest 5 May, 2025

    36 °F

  • Average May

    54.5 °F

  • Highest 6 May, 2025

    77 °F

Climate (2020–Present)

Arlington Municipal Airport (49.7 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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