West Longview Weather Forecast

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    • 49

    Rain

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    • 46

    Rain Likely

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    • 45

    Rain

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    • 44

    Rain

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    • 46

    Chance Rain

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    • 49

    Mostly Cloudy

Today 4 Jan Cowlitz County Lowlands

A slight chance of Thunderstorms. A chance of rain this Morning, then Showers this afternoon. Highs in the upper 40s. South wind 5 to 10 Mph. Chance of rain near 100 percent. Rainfall Amounts around a quarter of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 4 Jan Cowlitz County Lowlands

Mostly cloudy. Rain Showers, mainly this evening. Lows in the upper 30s. South wind 5 to 10 Mph. Chance of rain 90 percent. Rainfall Amounts around a tenth of an inch.

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West Longview Temperature Statistics

January Temperature

Southwest Washington Regional Airport (6.2 miles)

  • Lowest 1 January, 2026

    30 °F

  • Average January

    42 °F

  • Highest 2 January, 2026

    48 °F

Climate (2021–Present)

Southwest Washington Regional Airport (6.2 miles)

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  • Average Low 2021–2026

    45.1 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    62.4 °F
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