Washington County State Lake Weather Forecast

    • 41
    • 73

    Rain Showers

    • 47
    • 55

    Rain Showers

    • 57
    • 73

    Rain Showers

    • 56
    • 77

    Rain Showers Likely

    • 52
    • 80

    Chance Rain Showers

    • 32
    • 68

    Chance Rain Showers

Today 9 Apr Washington

Partly sunny. A chance of Showers in the Morning, then Showers with a chance of Thunderstorms in the afternoon. Highs in the lower 70s. East Winds 5 to 10 Mph, becoming south 10 to 15 Mph in the afternoon. Chance of rain 80 percent.

Tonight 9 Apr Washington

Partly cloudy with a slight chance of Showers and Thunderstorms. Cooler with Lows in the mid 40s. East Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Washington County State Lake Temperature Statistics

April Temperature

Marysville Municipal Airport (26.1 miles)

  • Lowest 5 April, 2026

    30.2 °F

  • Average April

    46.8 °F

  • Highest 3 April, 2026

    71.6 °F

Climate (2021–Present)

Marysville Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    54.9 °F

  • Average High 2021–2026

    66.4 °F
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