Clover Valley Fen State Natural Area Weather Forecast

    • 50
    • 73

    Partly Sunny

    • 52
    • 77

    Mostly Cloudy

    • 52
    • 80

    Partly Sunny

    • 52
    • 79

    Mostly Sunny

    • 57
    • 83

    Partly Sunny

    • 64
    • 87

    Chance Rain Showers

Today 30 May Walworth

Cooler. Partly sunny. Highs in the lower 70s. East Winds 10 to 15 Mph.

Tonight 30 May Walworth

Partly cloudy. Lows around 50. East Winds 5 to 15 Mph.

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Clover Valley Fen State Natural Area Temperature Statistics

May Temperature

Janesville-Rock County (20.5 miles)

  • Lowest 2 May, 2026

    30.2 °F

  • Average May

    56 °F

  • Highest 26 May, 2026

    87.8 °F

Climate (2021–Present)

Janesville-Rock County (20.5 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.4 °F
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