Columbia River - Cooper Point Weather Forecast

    • 49
    • 64

    Increasing Clouds

    • 50
    • 63

    Mostly Cloudy

    • 49
    • 68

    Partly Sunny

    • 52
    • 76

    Partly Sunny

    • 50
    • 70

    Partly Sunny

    • 47
    • 67

    Partly Sunny

    • 47
    • 64

    Partly Sunny

Today 18 May Willapa and Wahkiakum Lowlands

Sunny. Highs in the lower 60s. West wind 5 to 10 Mph.

Tonight 18 May Willapa and Wahkiakum Lowlands

Mostly cloudy. Lows in the upper 40s. West wind 5 to 10 Mph.

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Columbia River - Cooper Point Temperature Statistics

May Temperature

Southwest Washington Regional Airport (17.4 miles)

  • Lowest 9 May, 2026

    44.1 °F

  • Average May

    59.5 °F

  • Highest 3 May, 2026

    91 °F

Climate (2021–Present)

Southwest Washington Regional Airport (17.4 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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