Sugar River Forest Preserve Weather Forecast

    • 58
    • 74

    Chance Thunderstorms

    • 52
    • 64

    Mostly Cloudy

    • 44
    • 60

    Rain

    • 32
    • 53

    Breezy

    • 38
    • 58

    Sunny

    • 46
    • 63

    Partly Sunny

Today 13 Oct Winnebago

Partly cloudy late in the morning then clearing. Highs in the mid 70s. West Winds 5 to 10 Mph.

Tonight 13 Oct Winnebago

Mostly cloudy. A chance of Showers and Thunderstorms until early Morning, then a slight chance of Showers and Thunderstorms late. Lows in the upper 50s. North Winds 5 to 10 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sugar River Forest Preserve Temperature Statistics

October Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 2 October, 2026

    41 °F

  • Average October

    56 °F

  • Highest 10 October, 2026

    82.4 °F

Climate (2021–2026)

Janesville-Rock County (14.3 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.6 °F

  • Average High 2021–2026

    60.1 °F
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