Clover Valley Fen State Natural Area Weather Forecast

    • 17
    • 25

    Increasing Clouds

    • 31
    • 38

    Cloudy

    • 24
    • 41

    Mostly Cloudy

    • 37
    • 42

    Chance Rain

    • 32
    • 50

    Mostly Cloudy

    • 28
    • 42

    Mostly Cloudy

Today 21 Dec Walworth

Colder, sunny. Highs in the mid 20s. West Winds 5 to 10 Mph.

Tonight 21 Dec Walworth

Partly cloudy through around midnight then becoming cloudy. Lows around 18. South Winds up to 10 Mph.

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Clover Valley Fen State Natural Area Temperature Statistics

December Temperature

Janesville-Rock County (20.5 miles)

  • Lowest 14 December, 2025

    -7.6 °F

  • Average December

    19.1 °F

  • Highest 18 December, 2025

    46.4 °F

Climate (2020–Present)

Janesville-Rock County (20.5 miles)

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  • Average Low 2020–2025

    40.4 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    60.2 °F
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