Washington County State Lake Weather Forecast

    • 63
    • 87

    Sunny

    • 63
    • 87

    Mostly Sunny

    • 66
    • 88

    Sunny

    • 69
    • 92

    Sunny

    • 73
    • 92

    Mostly Sunny

    • 76
    • 95

    Mostly Sunny

Today 12 Jul Washington

Sunny. Near steady temperature in the mid 80s. East Winds 5 to 10 Mph.

Tonight 12 Jul Washington

Clear. Lows in the mid 60s. Southeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Washington County State Lake Temperature Statistics

July Temperature

Marysville Municipal Airport (26.1 miles)

  • Lowest 5 July, 2026

    62.6 °F

  • Average July

    77.8 °F

  • Highest 2 July, 2026

    91.4 °F

Climate (2021–2026)

Marysville Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    66.6 °F
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