Columbia River - Kalama River Entrance Weather Forecast

    • 37
    • 62

    Mostly Cloudy

    • 37
    • 59

    Partly Sunny

    • 37
    • 53

    Rain Likely

    • 32
    • 53

    Chance Rain

    • 40
    • 57

    Rain Likely

    • 39
    • 52

    Rain

Today 27 Mar Cowlitz County Lowlands

Mostly sunny. Highs in the lower 60s. North wind 5 to 10 Mph.

Tonight 27 Mar Cowlitz County Lowlands

Mostly cloudy in the Evening, then becoming partly cloudy. Patchy frost after midnight. Lows in the upper 30s. Winds light.

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Columbia River - Kalama River Entrance Temperature Statistics

March Temperature

Southwest Washington Regional Airport (5.6 miles)

  • Lowest 22 March, 2026

    28.9 °F

  • Average March

    47.5 °F

  • Highest 16 March, 2026

    66 °F

Climate (2021–Present)

Southwest Washington Regional Airport (5.6 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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