West Side Highway Weather Forecast

    • 44
    • 55

    Rain

    • 42
    • 63

    Partly Sunny

    • 41
    • 66

    Mostly Sunny

    • 42
    • 68

    Partly Sunny

    • 44
    • 66

    Partly Sunny

    • 43
    • 67

    Partly Sunny

Today 22 Apr Cowlitz County Lowlands

Rain, mainly this morning. Highs in the mid 50s. Southwest wind 15 to 20 Mph. Chance of rain near 100 percent. Rainfall Amounts a tenth to a quarter of an inch.

Tonight 22 Apr Cowlitz County Lowlands

Mostly cloudy. Lows in the mid 40s. South wind 5 to 10 Mph.

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West Side Highway Temperature Statistics

April Temperature

Southwest Washington Regional Airport (5 miles)

  • Lowest 9 April, 2026

    35.1 °F

  • Average April

    52.7 °F

  • Highest 5 April, 2026

    79 °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 °F

  • Average High 2021–2026

    62.5 °F
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