Columbia River - Kalama River Entrance Weather Forecast

    • 36
    • 53

    Areas Fog

    • 35
    • 54

    Mostly Sunny

    • 33
    • 54

    Mostly Sunny

    • 33
    • 53

    Mostly Sunny

    • 32
    • 52

    Partly Sunny

    • 34
    • 50

    Mostly Cloudy

    • 38
    • 49

    Chance Rain

Today 15 Jan Cowlitz County Lowlands

Partly sunny this Morning, then clearing. Patchy dense fog this morning. Highs in the lower 50s. North wind 5 to 10 Mph.

Tonight 15 Jan Cowlitz County Lowlands

Mostly clear. Patchy fog. Lows in the mid 30s. Winds light.

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Columbia River - Kalama River Entrance Temperature Statistics

January Temperature

Southwest Washington Regional Airport (5.6 miles)

  • Lowest 1 January, 2026

    30 °F

  • Average January

    44 °F

  • Highest 12 January, 2026

    55 °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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