Hononegah Forest Preserve Weather Forecast

    • 31
    • 48

    Becoming Sunny

    • 28
    • 48

    Partly Sunny

    • 43
    • 54

    Partly Sunny

    • 45
    • 72

    Mostly Sunny

    • 52
    • 71

    Partly Sunny

    • 59
    • 78

    Mostly Cloudy

Today 18 Apr Winnebago

Mostly cloudy in the Morning, then becoming partly cloudy. Breezy. Highs in the upper 40s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 18 Apr Winnebago

Clear. Widespread frost after midnight. Lows in the lower 30s. West Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming southwest around 5 Mph after midnight.

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Hononegah Forest Preserve Temperature Statistics

April Temperature

Janesville-Rock County (12.4 miles)

  • Lowest 7 April, 2026

    23 °F

  • Average April

    47 °F

  • Highest 12 April, 2026

    75.2 °F

Climate (2021–Present)

Janesville-Rock County (12.4 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.4 °F
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