Trafton Weather Forecast

    • 56
    • 81

    Mostly Cloudy

    • 52
    • 74

    Mostly Cloudy

    • 53
    • 71

    Mostly Cloudy

    • 52
    • 73

    Chance Rain

    • 52
    • 72

    Partly Sunny

    • 51
    • 74

    Partly Sunny

    • 52
    • 76

    Partly Sunny

Today 9 Sep Foothills and Valleys of the North Cascades

Mostly sunny. Highs in the mid 70s to lower 80s. Light wind.

Tonight 9 Sep Foothills and Valleys of the North Cascades

Mostly cloudy. Lows in the mid 50s. Light wind becoming north to 10 Mph with Gusts to 20 Mph after midnight.

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Trafton Temperature Statistics

September Temperature

Arlington Municipal Airport (6.8 miles)

  • Lowest 6 September, 2026

    46.9 °F

  • Average September

    60.2 °F

  • Highest 4 September, 2026

    73 °F

Climate (2021–2026)

Arlington Municipal Airport (6.8 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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