Washington County State Lake Weather Forecast

    • 16
    • 30

    Chance Snow

    • 20
    • 35

    Chance Snow

    • 17
    • 41

    Mostly Sunny

    • 12
    • 36

    Sunny

    • 27
    • 41

    Partly Sunny

    • 36
    • 62

    Mostly Cloudy

    • 33
    • 60

    Partly Sunny

Today 19 Feb Washington

Partly sunny with a chance of Flurries. Brisk and much cooler. Near steady temperature in the upper 20s. North Winds 20 to 25 Mph.

Tonight 19 Feb Washington

Cloudy with a slight chance of snow this Evening, then partly cloudy after midnight. Cold with Lows around 17. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of snow 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Washington County State Lake Temperature Statistics

February Temperature

Marysville Municipal Airport (26.1 miles)

  • Lowest 1 February, 2026

    15.8 °F

  • Average February

    42.2 °F

  • Highest 9 February, 2026

    77 °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

    66.4 °F
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