Siouxon Co Park Weather Forecast

    • 47
    • 72

    Mostly Cloudy

    • 39
    • 63

    Partly Sunny

    • 44
    • 56

    Mostly Cloudy

    • 46
    • 55

    Chance Rain Showers

    • 44
    • 59

    Chance Rain Showers

    • 46
    • 68

    Mostly Sunny

Today 25 Apr South Washington Cascade Foothills

Mostly sunny. Highs in the mid 70s. Winds light.

Tonight 25 Apr South Washington Cascade Foothills

Mostly cloudy. Lows in the mid 40s. Northwest wind 5 to 10 Mph, becoming light after midnight.

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Siouxon Co Park Temperature Statistics

April Temperature

Southwest Washington Regional Airport (29.2 miles)

  • Lowest 22 April, 2025

    32 °F

  • Average April

    51.6 °F

  • Highest 18 April, 2025

    77 °F

Climate (2020–Present)

Southwest Washington Regional Airport (29.2 miles)

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  • Average Low 2020–2025

    45 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    62.1 °F
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