Columbia River - Flandersville Weather Forecast

    • 49
    • 54

    Rain Showers Likely

    • 52
    • 56

    Rain Showers

    • 48
    • 56

    Rain Showers

    • 48
    • 58

    Chance Rain Showers

    • 49
    • 58

    Rain Showers Likely

    • 44
    • 59

    Chance Rain Showers

Today 15 May Willapa and Wahkiakum Lowlands

Mostly cloudy. A slight chance of Showers this Morning, then Showers likely this afternoon. Highs in the mid 50s. West wind 5 to 10 Mph. Chance of rain 70 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 15 May Willapa and Wahkiakum Lowlands

Cloudy with a 50 percent chance of Showers. Lows in the upper 40s. Winds light. Rainfall Amounts less than a tenth of an inch.

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Columbia River - Flandersville Temperature Statistics

May Temperature

Southwest Washington Regional Airport (19.3 miles)

  • Lowest 4 May, 2025

    35.1 °F

  • Average May

    55.6 °F

  • Highest 1 May, 2025

    84 °F

Climate (2020–Present)

Southwest Washington Regional Airport (19.3 miles)

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  • Average Low 2020–2025

    45 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    62.1 °F
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