Washington County State Lake Weather Forecast

    • 56
    • 74

    Mostly Cloudy

    • 56
    • 75

    Slight Chance Thunderstorms

    • 60
    • 77

    Chance Rain Showers

    • 57
    • 79

    Chance Thunderstorms

    • 59
    • 79

    Chance Thunderstorms

    • 66
    • 81

    Chance Thunderstorms

Today 21 Jun Washington

Mostly cloudy. Highs in the mid 70s. Northeast Winds 5 to 10 Mph.

Tonight 21 Jun Washington

Mostly cloudy. Lows in the upper 50s. Northeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Washington County State Lake Temperature Statistics

June Temperature

Marysville Municipal Airport (26.1 miles)

  • Lowest 12 June, 2026

    51.8 °F

  • Average June

    73.7 °F

  • Highest 10 June, 2026

    91.4 °F

Climate (2021–2026)

Marysville Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    66.6 °F
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