Washington County State Lake Weather Forecast

    • 34
    • 49

    Slight Chance Rain Showers

    • 53
    • 63

    Rain Showers

    • 29
    • 69

    Rain Showers

    • 32
    • 51

    Mostly Sunny

    • 42
    • 64

    Sunny

    • 48
    • 73

    Chance Rain Showers

    • 26
    • 65

    Rain Showers Likely

Today 4 Mar Washington

Mostly cloudy with a 20 percent chance of Showers. Highs in the upper 40s. North Winds around 5 Mph.

Tonight 4 Mar Washington

Mostly cloudy. A slight chance of rain Showers early this evening. Patchy fog. Lows in the mid 30s. South Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • 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

    32.9 °F

  • Highest 2 March, 2026

    41 °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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