Columbia River - Sandy Island Weather Forecast

    • 63
    • 91

    Patchy Smoke

    • 58
    • 88

    Partly Sunny

    • 59
    • 82

    Partly Sunny

    • 57
    • 77

    Partly Sunny

    • 56
    • 76

    Partly Sunny

    • 54
    • 73

    Slight Chance Rain

    • 55
    • 75

    Mostly Sunny

Today 24 Aug Lower Columbia River

Mostly sunny. Patchy smoke. Highs in the lower 90s. Winds light.

Tonight 24 Aug Lower Columbia River

Partly cloudy in the Evening, then becoming mostly clear. Patchy smoke. Lows in the lower 60s. Winds light in the Evening, becoming light and variable.

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Columbia River - Sandy Island Temperature Statistics

August Temperature

Southwest Washington Regional Airport (7.5 miles)

  • Lowest 9 August, 2026

    54 °F

  • Average August

    67.7 °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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