Columbia River - Kalama River Entrance Weather Forecast

    • 36
    • 61

    Becoming Sunny

    • 40
    • 67

    Mostly Sunny

    • 43
    • 72

    Mostly Sunny

    • 45
    • 73

    Chance Rain

    • 42
    • 61

    Chance Rain

    • 41
    • 58

    Rain Likely

Today 7 Apr Cowlitz County Lowlands

Sunny. Highs in the lower 60s. Winds light.

Tonight 7 Apr Cowlitz County Lowlands

Mostly clear. Areas of frost after midnight. Lows in the mid 30s. Winds light.

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  • Temperature Real-Time

Columbia River - Kalama River Entrance Temperature Statistics

April Temperature

Southwest Washington Regional Airport (5.6 miles)

  • Lowest 4 April, 2026

    37.9 °F

  • Average April

    52.4 °F

  • Highest 5 April, 2026

    79 °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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