Mirror Lake Weather Forecast

    • 21
    • 38

    Mostly Cloudy

    • 31
    • 37

    Partly Sunny

    • 3
    • 40

    Rain Showers Likely

    • 13
    • 22

    Mostly Cloudy

    • 7
    • 34

    Mostly Cloudy

    • 9
    • 23

    Mostly Cloudy

Today 16 Dec Sauk

Not as cold. Partly sunny. Highs in the mid 30s. Southwest Winds 5 to 15 Mph.

Tonight 16 Dec Sauk

Partly cloudy after midnight then becoming mostly cloudy. Patchy fog. Near steady temperature around 11. South Winds up to 5 Mph.

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Mirror Lake Temperature Statistics

December Temperature

Baraboo Wisconsin Dells Airport (3.7 miles)

  • Lowest 4 December, 2025

    -9.4 °F

  • Average December

    16 °F

  • Highest 9 December, 2025

    29.3 °F

Climate (2020–Present)

Baraboo Wisconsin Dells Airport (3.7 miles)

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  • Average Low 2020–2025

    38 °F

  • Average 2020–2025

    47.9 °F

  • Average High 2020–2025

    57.6 °F
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