Washington County State Lake Weather Forecast

    • 34
    • 51

    Becoming Sunny

    • 42
    • 64

    Sunny

    • 43
    • 72

    Sunny

    • 36
    • 65

    Chance Rain Showers

    • 30
    • 53

    Mostly Sunny

    • 42
    • 62

    Partly Sunny

Today 7 Mar Washington

Mostly sunny. Much cooler with Highs in the lower 50s. Northwest Winds 10 to 15 Mph.

Tonight 7 Mar Washington

Cloudy and much Colder. Near steady temperature in the lower 30s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

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  • Temperature Real-Time

Washington County State Lake Temperature Statistics

March Temperature

Marysville Municipal Airport (26.1 miles)

  • Lowest 1 March, 2026

    23 °F

  • Average March

    37.5 °F

  • Highest 3 March, 2026

    46.4 °F

Climate (2021–Present)

Marysville Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    54.9 °F

  • Average High 2021–2026

    66.3 °F
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