Columbia River - Kalama River Entrance Weather Forecast

    • 26
    • 44

    Decreasing Clouds

    • 23
    • 46

    Mostly Sunny

    • 25
    • 46

    Mostly Sunny

    • 29
    • 46

    Partly Sunny

    • 36
    • 46

    Mostly Cloudy

    • 37
    • 53

    Chance Rain

    • 39
    • 51

    Chance Rain/Snow

Today 22 Jan Cowlitz County Lowlands

Mostly cloudy. Widespread frost this morning. A slight chance of rain this afternoon. Highs in the mid 40s. Winds light this Morning, becoming light and variable. Chance of rain 20 percent.

Tonight 22 Jan Cowlitz County Lowlands

Mostly cloudy with a slight chance of rain this Evening, then partly cloudy after midnight. Widespread frost. Lows in the upper 20s. Light and variable Winds. Chance of rain 20 percent.

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  • Temperature Real-Time

Columbia River - Kalama River Entrance Temperature Statistics

January Temperature

Southwest Washington Regional Airport (5.6 miles)

  • Lowest 20 January, 2026

    24.1 °F

  • Average January

    42.5 °F

  • Highest 15 January, 2026

    55.9 °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

    52.9 °F

  • Average High 2021–2026

    62.4 °F
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