Arlington Weather Forecast

    • 56
    • 81

    Partly Cloudy

    • 55
    • 82

    Mostly Sunny

    • 54
    • 79

    Partly Sunny

    • 53
    • 79

    Partly Sunny

    • 54
    • 79

    Partly Sunny

    • 54
    • 77

    Mostly Cloudy

    • 53
    • 75

    Partly Sunny

Today 13 Aug Lowlands of Western Skagit and Northwestern Snohomish Counties

Sunny. Highs in the 70s. Light wind.

Tonight 13 Aug Lowlands of Western Skagit and Northwestern Snohomish Counties

Partly cloudy. Lows in the 50s. West wind to 10 Mph in the evening becoming light.

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Arlington Temperature Statistics

August Temperature

Arlington Municipal Airport (3.1 miles)

  • Lowest 3 August, 2026

    46.4 °F

  • Average August

    64.1 °F

  • Highest 6 August, 2026

    84.9 °F

Climate (2021–2026)

Arlington Municipal Airport (3.1 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.8 °F
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