Washington County State Lake Weather Forecast

    • 1
    • 39

    Increasing Clouds

    • -2
    • 5

    Cold

    • -3
    • 6

    Chance Snow

    • -7
    • 13

    Partly Sunny

    • 8
    • 24

    Mostly Sunny

    • 8
    • 28

    Partly Sunny

    • 5
    • 26

    Mostly Sunny

Today 22 Jan Washington

Sunny, cooler. Near steady temperature in the upper 30s. North Winds 5 to 10 Mph.

Tonight 22 Jan Washington

Mostly cloudy. Colder with Lows around 2 above. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Wind chill Values as low as 12 below after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Washington County State Lake Temperature Statistics

January Temperature

Marysville Municipal Airport (26.1 miles)

  • Lowest 17 January, 2026

    6.8 °F

  • Average January

    33.8 °F

  • Highest 7 January, 2026

    68 °F

Climate (2021–Present)

Marysville Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    66 °F
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