Riverside County Park Weather Forecast

    • 32
    • 46

    Rain/Snow Likely

    • 39
    • 44

    Rain

    • 44
    • 51

    Rain

    • 43
    • 48

    Rain

    • 39
    • 51

    Rain

    • 39
    • 51

    Chance Rain

    • 45
    • 51

    Rain Likely

Today 9 Mar Cowlitz County Lowlands

Rain Showers likely with a slight chance of Thunderstorms. Highs in the mid 40s. West wind 5 to 10 Mph. Chance of rain 70 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 9 Mar Cowlitz County Lowlands

Mostly cloudy. Rain Likely, a slight chance of Thunderstorms and snow in the Evening, then a chance of rain and snow after midnight. Patchy fog after midnight. Snow level 500 feet. Little or no snow accumulation. Lows in the lower 30s. Southwest wind 5 to 10 Mph, becoming light after midnight. Chance of precipitation 70 percent. Rainfall Amounts around a tenth of an inch.

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Riverside County Park Temperature Statistics

March Temperature

Southwest Washington Regional Airport (5 miles)

  • Lowest 2 March, 2026

    34 °F

  • Average March

    48.7 °F

  • Highest 1 March, 2026

    62.1 °F

Climate (2021–Present)

Southwest Washington Regional Airport (5 miles)

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  • Average Low 2021–2026

    45.1 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    62.5 °F
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