West Longview Weather Forecast

    • 47
    • 62

    Rain Showers

    • 48
    • 65

    Chance Rain Showers

    • 50
    • 72

    Partly Sunny

    • 52
    • 75

    Mostly Cloudy

    • 45
    • 62

    Partly Sunny

    • 43
    • 63

    Partly Sunny

Today 25 May Cowlitz County Lowlands

A chance of rain this Morning, then rain with a slight chance of Thunderstorms this afternoon. Highs in the mid 60s. Southwest wind 15 to 20 Mph. Chance of rain near 100 percent. Rainfall Amounts a tenth to a quarter of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 25 May Cowlitz County Lowlands

Mostly cloudy with a 50 percent chance of rain. Lows in the mid 40s. Winds light. Rainfall Amounts around a tenth of an inch.

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West Longview Temperature Statistics

May Temperature

Southwest Washington Regional Airport (6.2 miles)

  • Lowest 17 May, 2026

    39.9 °F

  • Average May

    59.1 °F

  • Highest 3 May, 2026

    91 °F

Climate (2021–Present)

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

    62.6 °F
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