Ruby Arm Weather Forecast

    • 54
    • 73

    Areas Smoke

    • 53
    • 78

    Areas Smoke

    • 52
    • 72

    Rain

    • 47
    • 59

    Chance Rain

    • 53
    • 67

    Partly Sunny

    • 56
    • 73

    Partly Sunny

Today 18 Sep Cascades of Whatcom and Skagit Counties

Mostly sunny. Areas of smoke. Freezing level near 12000 feet.

Tonight 18 Sep Cascades of Whatcom and Skagit Counties

Mostly clear. Areas of smoke. Freezing level near 13500 feet.

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Ruby Arm Temperature Statistics

September Temperature

Arlington Municipal Airport (64.6 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 (64.6 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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