Columbia River - Martin Island Weather Forecast

    • 50
    • 79

    Decreasing Clouds

    • 51
    • 75

    Mostly Cloudy

    • 55
    • 77

    Mostly Cloudy

    • 55
    • 88

    Mostly Sunny

    • 53
    • 77

    Partly Sunny

    • 50
    • 74

    Partly Sunny

Today 30 Apr Cowlitz County Lowlands

Mostly sunny. Highs in the upper 70s. Winds light.

Tonight 30 Apr Cowlitz County Lowlands

Partly cloudy. Lows in the upper 40s. Winds light.

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Columbia River - Martin Island Temperature Statistics

April Temperature

Southwest Washington Regional Airport (11.8 miles)

  • Lowest 9 April, 2026

    35.1 °F

  • Average April

    52.7 °F

  • Highest 5 April, 2026

    79 °F

Climate (2021–Present)

Southwest Washington Regional Airport (11.8 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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