Columbia River - Sandy Island Weather Forecast

    • 34
    • 47

    Decreasing Clouds

    • 33
    • 50

    Partly Sunny

    • 36
    • 49

    Mostly Cloudy

    • 40
    • 47

    Rain

    • 41
    • 50

    Rain

    • 41
    • 49

    Rain Likely

    • 41
    • 49

    Rain Likely

Today 29 Dec Lower Columbia River

Areas of frost this morning. Partly sunny. Highs in the upper 40s. Winds light.

Tonight 29 Dec Lower Columbia River

Partly cloudy. Areas of frost. Lows in the lower 30s. Winds light.

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Columbia River - Sandy Island Temperature Statistics

December Temperature

Southwest Washington Regional Airport (7.5 miles)

  • Lowest 1 December, 2025

    35.1 °F

  • Average December

    47.2 °F

  • Highest 15 December, 2025

    60.1 °F

Climate (2020–Present)

Southwest Washington Regional Airport (7.5 miles)

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  • Average Low 2020–2025

    45.2 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    62.4 °F
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