Columbia River - Martin Island Weather Forecast

    • 54
    • 73

    Rain Likely

    • 55
    • 74

    Partly Sunny

    • 58
    • 83

    Mostly Sunny

    • 59
    • 90

    Mostly Sunny

    • 58
    • 87

    Mostly Sunny

    • 57
    • 84

    Mostly Sunny

Today 1 Aug Cowlitz County Lowlands

Rain likely in the Morning, then mostly sunny with a chance of rain in the afternoon. Highs in the lower 70s. Winds Light, becoming west 5 to 10 Mph in the afternoon. Chance of rain 70 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 1 Aug Cowlitz County Lowlands

Mostly clear in the Evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the lower 50s. West wind 5 to 10 Mph in the Evening, becoming light and variable.

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Columbia River - Martin Island Temperature Statistics

August Temperature

Southwest Washington Regional Airport (11.8 miles)

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  • Average August

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Climate (2021–2026)

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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