Cowlitz River - Longview Weather Forecast

    • 44
    • 68

    Becoming Sunny

    • 47
    • 81

    Sunny

    • 47
    • 70

    Rain Showers Likely

    • 42
    • 61

    Chance Rain Showers

    • 43
    • 67

    Mostly Sunny

    • 46
    • 70

    Partly Sunny

Today 30 Apr Cowlitz County Lowlands

Mostly sunny. Highs in the upper 60s. Winds light.

Tonight 30 Apr Cowlitz County Lowlands

Mostly clear. Lows in the lower 40s. Winds light.

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Cowlitz River - Longview Temperature Statistics

April Temperature

Southwest Washington Regional Airport (2.5 miles)

  • Lowest 22 April, 2025

    32 °F

  • Average April

    51.9 °F

  • Highest 24 April, 2025

    78.1 °F

Climate (2020–Present)

Southwest Washington Regional Airport (2.5 miles)

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  • Average Low 2020–2025

    45 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    62.1 °F
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