Clover Valley Fen State Natural Area Weather Forecast

    • 44
    • 57

    Mostly Cloudy

    • 49
    • 65

    Rain Showers Likely

    • 52
    • 72

    Slight Chance Thunderstorms

    • 52
    • 77

    Partly Sunny

    • 55
    • 81

    Partly Sunny

    • 58
    • 83

    Partly Sunny

Today 21 May Walworth

Mostly cloudy. Chance of Sprinkles in the late morning and afternoon. Highs in the upper 50s. East Winds 10 to 15 Mph.

Tonight 21 May Walworth

Mostly clear. Near steady temperature in the lower 40s. Northeast 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

    53.4 °F

  • Highest 17 May, 2026

    84.2 °F

Climate (2021–Present)

Janesville-Rock County (20.5 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    60.4 °F
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