Longview Weather Forecast

    • 63
    • 88

    Mostly Cloudy

    • 60
    • 84

    Partly Sunny

    • 59
    • 86

    Mostly Sunny

    • 60
    • 90

    Partly Sunny

    • 60
    • 81

    Partly Sunny

    • 60
    • 80

    Partly Sunny

    • 60
    • 82

    Mostly Sunny

Today 26 Aug Cowlitz County Lowlands

Partly sunny. Highs in the lower 90s. Winds light.

Tonight 26 Aug Cowlitz County Lowlands

Mostly cloudy. Lows around 60. Winds light.

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Longview Temperature Statistics

August Temperature

Southwest Washington Regional Airport (2.5 miles)

  • Lowest 8 August, 2025

    50 °F

  • Average August

    69.1 °F

  • Highest 12 August, 2025

    99 °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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