Lake Mills Weather Forecast

    • 3
    • 14

    Increasing Clouds

    • 17
    • 25

    Snow Likely

    • 5
    • 25

    Chance Snow

    • -3
    • 17

    Partly Sunny

    • 12
    • 21

    Snow Likely

    • 15
    • 31

    Snow Likely

Today 4 Dec Jefferson

Colder, sunny. Highs around 14. Northwest Winds up to 5 Mph shifting to the southwest in the afternoon.

Tonight 4 Dec Jefferson

Partly cloudy. Lows around 2. Southwest Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Mills Temperature Statistics

December Temperature

Watertown (11.2 miles)

  • Lowest 1 December, 2025

    1.4 °F

  • Average December

    16.8 °F

  • Highest 1 December, 2025

    24.6 °F

Climate (2020–Present)

Watertown (11.2 miles)

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  • Average Low 2020–2025

    35.8 °F

  • Average 2020–2025

    45.6 °F

  • Average High 2020–2025

    54.6 °F
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