West Side Highway Weather Forecast

    • 48
    • 60

    Chance Rain Showers

    • 46
    • 62

    Chance Rain Showers

    • 44
    • 57

    Rain Showers

    • 40
    • 56

    Rain Showers Likely

    • 41
    • 62

    Mostly Cloudy

    • 46
    • 67

    Partly Sunny

Today 13 May Cowlitz County Lowlands

Mostly cloudy. Showers likely Early, then a chance of Showers. Highs in the lower 60s. Southwest wind 10 to 15 Mph. Chance of rain 70 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 13 May Cowlitz County Lowlands

Mostly cloudy. A slight chance of Showers in the evening. Lows in the upper 40s. Southwest wind 5 to 10 Mph. Chance of rain 20 percent.

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West Side Highway Temperature Statistics

May Temperature

Southwest Washington Regional Airport (5 miles)

  • Lowest 9 May, 2026

    44.1 °F

  • Average May

    62 °F

  • Highest 3 May, 2026

    91 °F

Climate (2021–Present)

Southwest Washington Regional Airport (5 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.5 °F
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