Columbia River - Kalama River Entrance Weather Forecast

    • 44
    • 56

    Rain

    • 40
    • 54

    Rain

    • 35
    • 52

    Rain Showers

    • 34
    • 55

    Mostly Sunny

    • 39
    • 64

    Partly Sunny

    • 41
    • 64

    Partly Sunny

Today 23 Mar Cowlitz County Lowlands

Partly sunny in the Morning, then becoming mostly cloudy. Areas of frost in the morning. Highs in the upper 50s. Winds light.

Tonight 23 Mar Cowlitz County Lowlands

Mostly cloudy. A chance of Showers after midnight. Lows in the lower 40s. Winds light. Chance of rain 40 percent. Rainfall Amounts less than a tenth of an inch.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Columbia River - Kalama River Entrance Temperature Statistics

March Temperature

Southwest Washington Regional Airport (5.6 miles)

  • Lowest 10 March, 2026

    32 °F

  • Average March

    47.6 °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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