Arlington Weather Forecast

    • 46
    • 65

    Decreasing Clouds

    • 48
    • 71

    Mostly Cloudy

    • 46
    • 67

    Mostly Cloudy

    • 47
    • 72

    Partly Sunny

    • 50
    • 75

    Chance Rain

    • 50
    • 72

    Chance Rain

Today 8 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy until late afternoon then becoming mostly sunny. Highs in the upper 50s to mid 60s. South wind 10 to 15 Mph becoming southwest in the afternoon.

Tonight 8 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 40s to lower 50s. Southwest wind to 10 Mph in the evening becoming light.

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Arlington Temperature Statistics

May Temperature

Arlington Municipal Airport (3.1 miles)

  • Lowest 1 May, 2026

    46 °F

  • Average May

    60.6 °F

  • Highest 4 May, 2026

    79 °F

Climate (2021–Present)

Arlington Municipal Airport (3.1 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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