Washington County State Lake Weather Forecast

    • 50
    • 74

    Chance Rain Showers

    • 53
    • 67

    Slight Chance Rain Showers

    • 54
    • 76

    Partly Sunny

    • 56
    • 75

    Chance Thunderstorms

    • 53
    • 71

    Rain Showers Likely

    • 50
    • 67

    Chance Rain Showers

Today 26 Oct Washington

Partly sunny. A chance of Showers this afternoon. Highs in the mid 70s. South Winds 10 to 15 Mph. Chance of rain 40 percent.

Tonight 26 Oct Washington

Mostly cloudy. A slight chance of Showers in the evening. Lows in the lower 50s. Southwest Winds 5 to 10 Mph, becoming west after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Washington County State Lake Temperature Statistics

October Temperature

Marysville Municipal Airport (26.1 miles)

  • Lowest 17 October, 2026

    30.2 °F

  • Average October

    62.5 °F

  • Highest 7 October, 2026

    87.8 °F

Climate (2021–2026)

Marysville Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    66.6 °F
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