West Side Highway Weather Forecast

    • 58
    • 80

    Cloudy

    • 58
    • 75

    Mostly Cloudy

    • 56
    • 75

    Partly Sunny

    • 58
    • 83

    Mostly Sunny

    • 56
    • 81

    Partly Sunny

    • 53
    • 74

    Partly Sunny

    • 52
    • 74

    Partly Sunny

Today 21 Aug Cowlitz County Lowlands

Cloudy. Highs in the mid 80s. Winds light.

Tonight 21 Aug Cowlitz County Lowlands

Mostly cloudy. Areas of smoke this evening. Patchy fog after midnight. Lows in the upper 50s. Winds light.

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West Side Highway Temperature Statistics

August Temperature

Southwest Washington Regional Airport (5 miles)

  • Lowest 9 August, 2026

    54 °F

  • Average August

    67.9 °F

  • Highest 5 August, 2026

    93.9 °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

    62.4 °F
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