Columbia River - Martin Island Weather Forecast

    • 33
    • 50

    Slight Chance Rain Showers

    • 42
    • 52

    Chance Rain

    • 45
    • 61

    Rain Likely

    • 49
    • 59

    Rain

    • 51
    • 62

    Rain Likely

    • 49
    • 64

    Rain Likely

Today 14 Mar Cowlitz County Lowlands

Mostly sunny. Highs in the upper 40s. Northwest wind 5 to 10 Mph.

Tonight 14 Mar Cowlitz County Lowlands

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 30s. Northwest wind 5 to 10 Mph in the Evening, becoming light and variable.

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Columbia River - Martin Island Temperature Statistics

March Temperature

Southwest Washington Regional Airport (11.8 miles)

  • Lowest 10 March, 2026

    32 °F

  • Average March

    46.9 °F

  • Highest 1 March, 2026

    62.1 °F

Climate (2021–Present)

Southwest Washington Regional Airport (11.8 miles)

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  • Average Low 2021–2026

    45.1 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    62.5 °F
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