West Side Highway Weather Forecast

    • 31
    • 44

    Rain Showers

    • 38
    • 45

    Rain

    • 43
    • 50

    Rain

    • 41
    • 48

    Rain

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    • 49

    Rain

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    • 50

    Chance Rain

Today 9 Mar Cowlitz County Lowlands

Rain Showers likely with a chance of snow Showers this Morning, then rain Showers, a slight chance of Thunderstorms and snow Showers this afternoon. Snow level 1000 feet. No snow accumulation. Highs in the mid 40s. Southwest wind 5 to 10 Mph. Chance of precipitation 90 percent. Rainfall Amounts around a tenth of an inch.

Tonight 9 Mar Cowlitz County Lowlands

A chance of rain Showers. A slight chance of snow Showers in the Evening, then snow Showers likely after midnight. Patchy fog after midnight. Snow level 500 feet. Little or no snow accumulation. Lows in the lower 30s. Southwest wind 5 to 10 Mph, becoming light after midnight. Chance of precipitation 70 percent. Rainfall Amounts less than a tenth of an inch.

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West Side Highway Temperature Statistics

March Temperature

Southwest Washington Regional Airport (5 miles)

  • Lowest 2 March, 2026

    34 °F

  • Average March

    48.7 °F

  • Highest 1 March, 2026

    62.1 °F

Climate (2021–Present)

Southwest Washington Regional Airport (5 miles)

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  • Average Low 2021–2026

    45.1 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    62.5 °F
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