West Side Highway Weather Forecast

    • 34
    • 46

    Rain

    • 32
    • 48

    Chance Rain/Snow

    • 42
    • 48

    Rain Likely

    • 44
    • 57

    Rain Likely

    • 48
    • 59

    Rain

    • 49
    • 59

    Rain

Today 13 Mar Cowlitz County Lowlands

Rain. Highs around 50. Winds light. Chance of rain near 100 percent. Rainfall Amounts around one inch.

Tonight 13 Mar Cowlitz County Lowlands

Rain in the Evening, then rain likely with a slight chance of snow after midnight. Snow level 1500 feet after midnight. No snow accumulation. Lows in the mid 30s. Winds light. Chance of precipitation near 100 percent. Rainfall Amounts a tenth to a half of an inch.

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  • Temperature Forecast NOAA

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West Side Highway Temperature Statistics

March Temperature

Southwest Washington Regional Airport (5 miles)

  • Lowest 10 March, 2026

    32 °F

  • Average March

    46.9 °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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