Columbia River - Sandy Island Weather Forecast

    • 53
    • 88

    Increasing Clouds

    • 56
    • 80

    Mostly Cloudy

    • 52
    • 75

    Mostly Cloudy

    • 53
    • 79

    Mostly Sunny

    • 54
    • 78

    Partly Sunny

    • 53
    • 76

    Partly Sunny

Today 6 Jul Lower Columbia River

Sunny. Highs in the upper 80s. Northwest wind 5 to 10 Mph.

Tonight 6 Jul Lower Columbia River

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. Northwest wind 5 to 10 Mph.

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Columbia River - Sandy Island Temperature Statistics

July Temperature

Southwest Washington Regional Airport (7.5 miles)

  • Lowest 1 July, 2026

    53.1 °F

  • Average July

    62.2 °F

  • Highest 3 July, 2026

    75.9 °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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