Siouxon Co Park Weather Forecast

    • 53
    • 72

    Partly Sunny

    • 44
    • 73

    Rain Showers

    • 43
    • 55

    Rain Showers

    • 40
    • 48

    Rain Showers

    • 38
    • 49

    Rain Showers

    • 41
    • 57

    Rain Showers

    • 38
    • 49

    Rain Showers

Today 25 Mar South Washington Cascade Foothills

Partly sunny. Highs in the mid 70s. Northeast wind 5 to 10 Mph.

Tonight 25 Mar South Washington Cascade Foothills

Mostly cloudy this Evening, then becoming partly cloudy. Lows in the lower 50s. East wind 5 to 10 Mph.

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Siouxon Co Park Temperature Statistics

March Temperature

Southwest Washington Regional Airport (29.2 miles)

  • Lowest 6 March, 2025

    30.9 °F

  • Average March

    46 °F

  • Highest 1 March, 2025

    61 °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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