Washington County State Lake Weather Forecast

    • 38
    • 59

    Rain Showers Likely

    • 35
    • 55

    Chance Rain Showers

    • 41
    • 63

    Partly Sunny

    • 39
    • 64

    Chance Rain Showers

    • 38
    • 64

    Partly Sunny

    • 42
    • 70

    Mostly Sunny

Today 27 Apr Washington

Mostly cloudy with a chance of Showers and Thunderstorms this Morning, then partly sunny this afternoon. Near steady temperature around 60. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

Tonight 27 Apr Washington

Partly cloudy. Much cooler with Lows in the upper 30s. North Winds 10 to 15 Mph.

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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

    56.2 °F
  • Highest 13 April, 2026

    89.6 °F

Climate (2021–Present)

Marysville Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    43.7 °F
  • Average 2021–2026

    55 °F
  • Average High 2021–2026

    66.6 °F
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