Arlington State Park Weather Forecast

    • 43
    • 58

    Slight Chance Rain Showers

    • 44
    • 56

    Mostly Cloudy

    • 42
    • 57

    Partly Sunny

    • 38
    • 53

    Partly Sunny

    • 37
    • 51

    Slight Chance Rain Showers

    • 35
    • 49

    Partly Sunny

    • 35
    • 49

    Partly Sunny

Today 25 Oct Eastern Columbia River Gorge of Washington

Mostly cloudy. Highs in the upper 50s to lower 60s. East wind 5 to 10 Mph.

Tonight 25 Oct Eastern Columbia River Gorge of Washington

Mostly cloudy with a 50 percent chance of rain Showers. Lows in the upper 30s to lower 40s. Northwest wind 5 to 10 Mph in the Evening, becoming light. Rainfall Amounts less than a tenth of an inch.

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Arlington State Park Temperature Statistics

October Temperature

Sunnyside Municipal Airport (40.4 miles)

  • Lowest 13 October, 2026

    30.6 °F

  • Average October

    52.8 °F

  • Highest 5 October, 2026

    81.7 °F

Climate (2021–2026)

Sunnyside Municipal Airport (40.4 miles)

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  • Average Low 2021–2026

    38.8 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    63.1 °F
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