Beaver Plant Lake Weather Forecast

    • 49
    • 66

    Areas Smoke

    • 49
    • 60

    Areas Smoke

    • 50
    • 66

    Mostly Sunny

    • 50
    • 62

    Rain Likely

    • 47
    • 55

    Chance Rain

    • 51
    • 60

    Partly Sunny

    • 52
    • 63

    Chance Rain

Today 17 Sep Cascades of Snohomish and Northern King Counties

Sunny. Areas of smoke in the late morning and early afternoon. Freezing level near 14000 feet. Afternoon pass Temperatures in the lower 70s. Light wind.

Tonight 17 Sep Cascades of Snohomish and Northern King Counties

Mostly clear in the evening then becoming mostly cloudy. Freezing level near 13000 feet. Lows in the upper 40s. Light wind.

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Beaver Plant Lake Temperature Statistics

September Temperature

Arlington Municipal Airport (21.7 miles)

  • Lowest 9 September, 2025

    51.8 °F

  • Average September

    62.8 °F

  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Arlington Municipal Airport (21.7 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    50.6 °F

  • Average High 2020–2025

    59.7 °F
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