Columbia River - Walker Island Weather Forecast

    • 57
    • 80

    Increasing Clouds

    • 57
    • 68

    Rain Likely

    • 54
    • 61

    Rain Showers

    • 52
    • 63

    Rain Showers

    • 52
    • 67

    Chance Rain

    • 54
    • 71

    Mostly Cloudy

Today 31 Aug Lower Columbia River

Mostly sunny. Highs in the mid 80s. Winds light.

Tonight 31 Aug Lower Columbia River

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the upper 50s. Winds light.

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Columbia River - Walker Island Temperature Statistics

August Temperature

Southwest Washington Regional Airport (7.5 miles)

  • Lowest 9 August, 2026

    54 °F

  • Average August

    67.4 °F

  • Highest 5 August, 2026

    93.9 °F

Climate (2021–2026)

Southwest Washington Regional Airport (7.5 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.5 °F
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