Columbia River - Sandy Island Weather Forecast

    • 52
    • 80

    Increasing Clouds

    • 48
    • 76

    Partly Sunny

    • 51
    • 78

    Mostly Cloudy

    • 46
    • 61

    Rain

    • 48
    • 65

    Chance Rain

    • 49
    • 68

    Mostly Cloudy

Today 22 May Lower Columbia River

Sunny. Highs in the upper 70s. Northwest wind 5 to 10 Mph.

Tonight 22 May Lower Columbia River

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 50s. Northwest wind 5 to 10 Mph.

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Columbia River - Sandy Island Temperature Statistics

May Temperature

Southwest Washington Regional Airport (7.5 miles)

  • Lowest 17 May, 2026

    39.9 °F

  • Average May

    58.9 °F

  • Highest 3 May, 2026

    91 °F

Climate (2021–Present)

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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