West Longview Weather Forecast

    • 40
    • 46

    Rain Showers

    • 40
    • 47

    Rain

    • 37
    • 47

    Rain Likely

    • 36
    • 46

    Chance Rain

    • 39
    • 47

    Rain Likely

    • 37
    • 48

    Chance Rain

Today 21 Dec Cowlitz County Lowlands

A chance of rain Showers this Morning, then rain Showers this afternoon. Highs in the mid 40s. South wind 5 to 10 Mph. Chance of rain 90 percent. Rainfall Amounts a tenth to a quarter of an inch.

Tonight 21 Dec Cowlitz County Lowlands

Rain Showers likely in the Evening, then rain likely after midnight. Lows in the upper 30s. South wind 5 to 10 Mph. Chance of rain 70 percent. Rainfall Amounts around a tenth of an inch.

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West Longview Temperature Statistics

December Temperature

Southwest Washington Regional Airport (6.2 miles)

  • Lowest 1 December, 2025

    35.1 °F

  • Average December

    49 °F

  • Highest 15 December, 2025

    60.1 °F

Climate (2020–Present)

Southwest Washington Regional Airport (6.2 miles)

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  • Average Low 2020–2025

    45.1 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    62.4 °F
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