Lake Mills Weather Forecast

    • 0
    • 4

    Cold

    • 10
    • 24

    Mostly Cloudy

    • 25
    • 35

    Mostly Cloudy

    • 28
    • 36

    Rain Likely

    • 1
    • 41

    Slight Chance Rain/Snow

    • 15
    • 23

    Mostly Cloudy

    • 13
    • 37

    Slight Chance Snow

Today 14 Dec Jefferson

Partly sunny. West Winds 5 to 10 Mph.

Tonight 14 Dec Jefferson

Mostly cloudy. Lows around 1. Southwest Winds 5 to 15 Mph. Gusts up to 30 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Mills Temperature Statistics

December Temperature

Watertown (11.2 miles)

  • Lowest 7 December, 2025

    -2.7 °F

  • Average December

    18.2 °F

  • Highest 10 December, 2025

    33.8 °F

Climate (2020–Present)

Watertown (11.2 miles)

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  • Average Low 2020–2025

    35.7 °F

  • Average 2020–2025

    45.5 °F

  • Average High 2020–2025

    54.5 °F
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