Columbia River - Kalama River Entrance Weather Forecast

    • 50
    • 64

    Chance Rain

    • 51
    • 62

    Rain

    • 38
    • 58

    Rain

    • 33
    • 54

    Chance Rain

    • 37
    • 56

    Mostly Cloudy

    • 43
    • 57

    Rain

    • 40
    • 54

    Rain

Today 18 Mar Cowlitz County Lowlands

Mostly cloudy with a 50 percent chance of rain. Highs in the mid 60s. Winds light. Rainfall Amounts less than a tenth of an inch.

Tonight 18 Mar Cowlitz County Lowlands

Mostly cloudy. A chance of rain this Evening, then rain likely after midnight. Lows around 50. Winds light. Chance of rain 70 percent. Rainfall Amounts around 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

    46.5 °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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