Sugar River Forest Preserve Weather Forecast

    • 41
    • 68

    Mostly Sunny

    • 46
    • 71

    Mostly Sunny

    • 45
    • 72

    Mostly Sunny

    • 48
    • 69

    Partly Sunny

    • 50
    • 69

    Mostly Cloudy

    • 47
    • 69

    Mostly Cloudy

Today 20 Oct Winnebago

Sunny. Highs in the upper 60s. Southeast Winds around 5 Mph.

Tonight 20 Oct Winnebago

Mostly clear. Lows in the lower 40s. Southeast Winds around 5 Mph.

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Sugar River Forest Preserve Temperature Statistics

October Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 17 October, 2026

    32 °F

  • Average October

    55.9 °F

  • Highest 12 October, 2026

    86 °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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