Columbia River - Martin Island Weather Forecast

    • 53
    • 64

    Rain Showers

    • 48
    • 59

    Rain Showers

    • 44
    • 55

    Rain Showers

    • 43
    • 52

    Rain Showers

    • 40
    • 54

    Rain

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    Chance Rain

Today 23 Oct Cowlitz County Lowlands

Mostly cloudy. A slight chance of rain this afternoon. Highs in the mid 60s. South wind 5 to 10 Mph. Chance of rain 20 percent.

Tonight 23 Oct Cowlitz County Lowlands

Mostly cloudy. A chance of Showers after midnight. Lows in the lower 50s. South wind 10 to 15 Mph. Chance of rain 50 percent. Rainfall Amounts less than a tenth of an inch.

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Columbia River - Martin Island Temperature Statistics

October Temperature

Southwest Washington Regional Airport (11.8 miles)

  • Lowest 15 October, 2025

    32 °F

  • Average October

    54.3 °F

  • Highest 7 October, 2025

    80.1 °F

Climate (2020–Present)

Southwest Washington Regional Airport (11.8 miles)

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  • Average Low 2020–2025

    44.9 °F

  • Average 2020–2025

    52.8 °F

  • Average High 2020–2025

    62.3 °F
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