Downtown (Longview) Weather Forecast

    • 57
    • 81

    Decreasing Clouds

    • 57
    • 81

    Partly Sunny

    • 57
    • 82

    Mostly Cloudy

    • 57
    • 81

    Mostly Cloudy

    • 57
    • 76

    Mostly Cloudy

    • 57
    • 78

    Partly Sunny

Today 14 Aug Cowlitz County Lowlands

Partly sunny in the Morning, then clearing. Patchy fog in the morning. Highs in the lower 80s. West wind 5 to 10 Mph.

Tonight 14 Aug Cowlitz County Lowlands

Mostly cloudy. Patchy fog. Lows in the mid 50s. Winds light.

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Downtown (Longview) Temperature Statistics

August Temperature

Southwest Washington Regional Airport (2.5 miles)

  • Lowest 9 August, 2026

    54 °F

  • Average August

    69.4 °F

  • Highest 5 August, 2026

    93.9 °F

Climate (2021–2026)

Southwest Washington Regional Airport (2.5 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.4 °F
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