Sugar River Forest Preserve Weather Forecast

    • 20
    • 31

    Mostly Cloudy

    • 18
    • 30

    Snow

    • 24
    • 29

    Snow

    • 0
    • 27

    Slight Chance Snow

    • 2
    • 17

    Slight Chance Snow

    • 7
    • 20

    Partly Sunny

Today 27 Nov Winnebago

Cloudy, Blustery. Highs in the lower 30s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 27 Nov Winnebago

Mostly cloudy. Lows around 20. Northwest Winds 10 to 15 Mph.

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Sugar River Forest Preserve Temperature Statistics

November Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 10 November, 2025

    19.4 °F

  • Average November

    40 °F

  • Highest 15 November, 2025

    69.8 °F

Climate (2020–Present)

Janesville-Rock County (14.3 miles)

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  • Average Low 2020–2025

    40.6 °F

  • Average 2020–2025

    48.8 °F

  • Average High 2020–2025

    60.4 °F
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