Cowlitz River - Longview Weather Forecast

    • 49
    • 59

    Rain

    • 45
    • 55

    Rain Showers

    • 42
    • 60

    Chance Rain Showers

    • 43
    • 65

    Mostly Sunny

    • 44
    • 66

    Partly Sunny

    • 49
    • 65

    Chance Rain Showers

Today 11 Oct Cowlitz County Lowlands

Mostly cloudy. A chance of Showers this Morning, then Showers this afternoon. Highs in the upper 50s. Winds light. Chance of rain 90 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 11 Oct Cowlitz County Lowlands

Mostly cloudy. A chance of Showers in the Evening, then Showers after midnight. Lows in the upper 40s. Winds light. Chance of rain 90 percent. Rainfall Amounts less than a tenth of an inch.

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Cowlitz River - Longview Temperature Statistics

October Temperature

Southwest Washington Regional Airport (2.5 miles)

  • Lowest 6 October, 2025

    41 °F

  • Average October

    58.4 °F

  • Highest 7 October, 2025

    80.1 °F

Climate (2020–Present)

Southwest Washington Regional Airport (2.5 miles)

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  • Average Low 2020–2025

    45 °F

  • Average 2020–2025

    52.8 °F

  • Average High 2020–2025

    62.3 °F
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