Seaquest State Park Weather Forecast

    • 47
    • 58

    Chance Rain

    • 45
    • 64

    Mostly Cloudy

    • 48
    • 69

    Mostly Cloudy

    • 47
    • 69

    Mostly Cloudy

    • 48
    • 72

    Partly Sunny

    • 49
    • 75

    Partly Sunny

    • 48
    • 69

    Partly Sunny

Today 29 Sep South Washington Cascade Foothills

Mostly cloudy with a 50 percent chance of rain. Patchy fog. Highs in the lower 60s. Winds light. Rainfall Amounts less than a tenth of an inch.

Tonight 29 Sep South Washington Cascade Foothills

Mostly cloudy. A chance of Rain, mainly in the evening. Patchy fog. Lows in the lower 50s. Light and variable Winds, becoming light after midnight. Chance of rain 50 percent. Rainfall Amounts less than a tenth of an inch.

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Seaquest State Park Temperature Statistics

September Temperature

Southwest Washington Regional Airport (13 miles)

  • Lowest 26 September, 2026

    45 °F

  • Average September

    60.5 °F

  • Highest 9 September, 2026

    86 °F

Climate (2021–2026)

Southwest Washington Regional Airport (13 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.4 °F
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