Arlington Weather Forecast

    • 34
    • 49

    Increasing Clouds

    • 33
    • 45

    Mostly Cloudy

    • 38
    • 48

    Mostly Cloudy

    • 43
    • 54

    Mostly Cloudy

    • 37
    • 55

    Partly Sunny

    • 36
    • 51

    Partly Sunny

Today 9 Jan Eastern Columbia River Gorge of Oregon

Mostly sunny. Highs in the upper 40s to lower 50s. Southwest wind 5 to 10 Mph.

Tonight 9 Jan Eastern Columbia River Gorge of Oregon

Mostly cloudy. Lows in the lower to mid 30s. Light wind.

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Arlington Temperature Statistics

January Temperature

Sunnyside Municipal Airport (43.5 miles)

  • Lowest 1 January, 2026

    23.7 °F

  • Average January

    35.9 °F

  • Highest 4 January, 2026

    50.5 °F

Climate (2021–Present)

Sunnyside Municipal Airport (43.5 miles)

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  • Average Low 2021–2026

    38.9 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    63.6 °F
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