Lake Mills Weather Forecast

    • 32
    • 40

    Chance Rain

    • 34
    • 45

    Mostly Cloudy

    • 38
    • 56

    Mostly Cloudy

    • 40
    • 64

    Mostly Cloudy

    • 25
    • 56

    Partly Sunny

    • 26
    • 42

    Mostly Cloudy

Today 18 Mar Jefferson

Not as cold. Cloudy in the morning then becoming partly sunny. Highs in the upper 30s. Southwest Winds 5 to 15 Mph.

Tonight 18 Mar Jefferson

Not as cold. Light snow after Midnight, then light Snow, possibly mixed with freezing drizzle early in the morning. New snow accumulation up to 1 inch. Lows around 17. South Winds 10 to 15 Mph. Chance of precipitation near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Mills Temperature Statistics

March Temperature

Watertown (11.2 miles)

  • Lowest 1 March, 2026

    7.2 °F

  • Average March

    38 °F

  • Highest 9 March, 2026

    68.9 °F

Climate (2021–Present)

Watertown (11.2 miles)

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  • Average Low 2021–2026

    35.8 °F

  • Average 2021–2026

    45.6 °F

  • Average High 2021–2026

    54.7 °F
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