Riverside County Park Weather Forecast

    • 41
    • 63

    Becoming Sunny

    • 40
    • 67

    Mostly Sunny

    • 40
    • 68

    Mostly Sunny

    • 43
    • 68

    Mostly Sunny

    • 44
    • 64

    Partly Sunny

    • 43
    • 67

    Mostly Sunny

    • 47
    • 74

    Mostly Sunny

Today 23 Apr Cowlitz County Lowlands

Mostly sunny. Highs in the lower 60s. Winds light.

Tonight 23 Apr Cowlitz County Lowlands

Mostly clear. Lows in the lower 40s. Winds light.

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Riverside County Park 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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