Columbia River - Sand Island Marine Park Weather Forecast

    • 64
    • 87

    Mostly Cloudy

    • 60
    • 84

    Decreasing Clouds

    • 59
    • 86

    Mostly Sunny

    • 61
    • 89

    Mostly Sunny

    • 60
    • 81

    Partly Sunny

    • 60
    • 79

    Partly Sunny

    • 60
    • 82

    Mostly Sunny

Today 26 Aug Lower Columbia River

Partly sunny. Highs in the lower 90s. Northwest wind 5 to 10 Mph.

Tonight 26 Aug Lower Columbia River

Mostly cloudy. Lows in the lower 60s. Northwest wind 5 to 10 Mph.

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  • Temperature Real-Time

Columbia River - Sand Island Marine Park Temperature Statistics

August Temperature

Scappoose Industrial Airpark (7.5 miles)

  • Lowest 8 August, 2025

    48.7 °F

  • Average August

    71.9 °F

  • Highest 23 August, 2025

    100 °F

Climate (2020–Present)

Scappoose Industrial Airpark (7.5 miles)

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  • Average Low 2020–2025

    43.9 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    63.3 °F
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