Trafton Weather Forecast

    • 33
    • 52

    Becoming Sunny

    • 32
    • 50

    Increasing Clouds

    • 31
    • 48

    Partly Sunny

    • 28
    • 48

    Mostly Sunny

    • 30
    • 48

    Partly Sunny

    • 35
    • 47

    Chance Rain

    • 38
    • 49

    Chance Rain

Today 20 Jan Foothills and Valleys of the North Cascades

Partly sunny until late afternoon then becoming sunny. Highs near 50. North wind 10 to 15 Mph becoming northwest in the afternoon. Gusts to 30 Mph.

Tonight 20 Jan Foothills and Valleys of the North Cascades

Mostly clear. Lows in the 30s. Northeast wind to 10 Mph in the evening becoming light.

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Trafton Temperature Statistics

January Temperature

Arlington Municipal Airport (6.8 miles)

  • Lowest 18 January, 2026

    25 °F

  • Average January

    43.4 °F

  • Highest 13 January, 2026

    57.9 °F

Climate (2021–Present)

Arlington Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.8 °F
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