West Longview Weather Forecast

    • 49
    • 70

    Increasing Clouds

    • 50
    • 70

    Mostly Cloudy

    • 51
    • 68

    Rain

    • 47
    • 63

    Slight Chance Rain

    • 47
    • 65

    Mostly Cloudy

    • 48
    • 66

    Mostly Cloudy

Today 22 Sep Cowlitz County Lowlands

Patchy fog in the morning. Partly sunny. Highs in the lower 70s. Northwest wind 5 to 10 Mph.

Tonight 22 Sep Cowlitz County Lowlands

Mostly clear in the Evening, then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 40s. Northwest wind 5 to 10 Mph in the Evening, becoming light and variable.

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West Longview Temperature Statistics

September Temperature

Southwest Washington Regional Airport (6.2 miles)

  • Lowest 4 September, 2026

    48 °F

  • Average September

    61.3 °F

  • Highest 9 September, 2026

    86 °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

    62.4 °F
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