Siouxon Co Park Weather Forecast

    • 48
    • 68

    Mostly Sunny

    • 57
    • 82

    Mostly Sunny

    • 59
    • 90

    Mostly Sunny

    • 56
    • 88

    Mostly Sunny

    • 56
    • 82

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

Today 2 Aug South Washington Cascade Foothills

Patchy fog in the morning. Mostly sunny. Highs in the lower 70s. Northwest wind 5 to 10 Mph.

Tonight 2 Aug South Washington Cascade Foothills

Partly cloudy. Patchy fog. Lows around 50. Light and variable Winds.

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Siouxon Co Park Temperature Statistics

August Temperature

Southwest Washington Regional Airport (29.2 miles)

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Climate (2021–2026)

Southwest Washington Regional Airport (29.2 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.5 °F
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