West Longview Weather Forecast

    • 54
    • 79

    Mostly Sunny

    • 57
    • 78

    Increasing Clouds

    • 54
    • 75

    Mostly Cloudy

    • 56
    • 80

    Partly Sunny

    • 56
    • 82

    Partly Sunny

    • 55
    • 81

    Partly Sunny

    • 56
    • 81

    Mostly Cloudy

Today 10 Aug Cowlitz County Lowlands

Sunny. Highs in the lower 80s. Northwest wind 5 to 10 Mph.

Tonight 10 Aug Cowlitz County Lowlands

Mostly clear. Patchy fog after midnight. Lows in the mid 50s. Northwest wind 5 to 10 Mph.

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West Longview Temperature Statistics

August Temperature

Southwest Washington Regional Airport (6.2 miles)

  • Lowest 4 August, 2026

    55 °F

  • Average August

    71 °F

  • Highest 5 August, 2026

    93.9 °F

Climate (2021–2026)

Southwest Washington Regional Airport (6.2 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.5 °F
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