Columbia River - Martin Island Weather Forecast

    • 41
    • 58

    Mostly Cloudy

    • 39
    • 57

    Partly Sunny

    • 46
    • 58

    Mostly Cloudy

    • 44
    • 60

    Mostly Cloudy

    • 47
    • 59

    Chance Rain

    • 47
    • 58

    Rain Likely

Today 31 Oct Cowlitz County Lowlands

Patchy fog and frost this morning. Partly sunny. Highs in the mid 50s. Light and variable Winds, becoming light this afternoon.

Tonight 31 Oct Cowlitz County Lowlands

Mostly cloudy. Patchy fog in the Evening, then Areas of fog with patchy frost after midnight. Lows in the upper 30s. Light and variable Winds.

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Columbia River - Martin Island Temperature Statistics

October Temperature

Southwest Washington Regional Airport (11.8 miles)

  • Lowest 11 October, 2026

    36 °F

  • Average October

    54.5 °F

  • Highest 4 October, 2026

    79 °F

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

    62.6 °F
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