Washington County State Lake Weather Forecast

    • 46
    • 70

    Mostly Sunny

    • 49
    • 69

    Thunderstorms Likely

    • 51
    • 69

    Thunderstorms

    • 39
    • 65

    Slight Chance Rain Showers

    • 41
    • 63

    Slight Chance Thunderstorms

    • 42
    • 66

    Chance Rain Showers

Today 24 Apr Washington

Sunny. Not as warm with Highs in the upper 60s. Northeast Winds 5 to 10 Mph.

Tonight 24 Apr Washington

Partly cloudy. Much cooler with Lows in the mid 40s. Northeast Winds 10 to 15 Mph with Gusts up to 30 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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