West Side Highway Weather Forecast

    • 40
    • 64

    Slight Chance Rain

    • 42
    • 62

    Mostly Cloudy

    • 39
    • 59

    Mostly Cloudy

    • 38
    • 62

    Mostly Sunny

    • 40
    • 65

    Partly Sunny

    • 40
    • 59

    Chance Rain

Today 17 Oct Cowlitz County Lowlands

Mostly cloudy with a slight chance of rain in the Morning, then mostly sunny in the afternoon. Highs in the mid 60s. Winds light. Chance of rain 20 percent.

Tonight 17 Oct Cowlitz County Lowlands

Mostly clear. Lows around 40. Winds light.

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West Side Highway Temperature Statistics

October Temperature

Southwest Washington Regional Airport (5 miles)

  • Lowest 11 October, 2026

    36 °F

  • Average October

    57.3 °F

  • Highest 4 October, 2026

    79 °F

Climate (2021–2026)

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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