Hononegah Forest Preserve Weather Forecast

    • 45
    • 69

    Rain Showers

    • 64
    • 73

    Rain Showers

    • 55
    • 78

    Rain Showers

    • 59
    • 71

    Rain Showers

    • 58
    • 77

    Chance Rain Showers

    • 55
    • 74

    Chance Rain Showers

Today 13 Sep Winnebago

Mostly cloudy. Scattered Showers late in the Morning, then numerous Showers early in the afternoon. Scattered Showers late. Near steady temperature in the upper 60s. Northwest Winds 5 to 10 Mph. Chance of precipitation 70 percent.

Tonight 13 Sep Winnebago

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 40s. Northwest Winds around 5 Mph, becoming north after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hononegah Forest Preserve Temperature Statistics

September Temperature

Janesville-Rock County (12.4 miles)

  • Lowest 11 September, 2026

    53.6 °F

  • Average September

    70.7 °F

  • Highest 1 September, 2026

    91.4 °F

Climate (2021–2026)

Janesville-Rock County (12.4 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.3 °F
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