Sugar River Forest Preserve Weather Forecast

    • 62
    • 85

    Chance Thunderstorms

    • 62
    • 83

    Mostly Sunny

    • 65
    • 87

    Mostly Sunny

    • 67
    • 87

    Slight Chance Thunderstorms

    • 73
    • 91

    Chance Rain Showers

    • 70
    • 90

    Chance Thunderstorms

    • 63
    • 85

    Chance Rain Showers

Today 30 Jun Winnebago

Partly cloudy. A chance of Showers and Thunderstorms in the afternoon. Highs in the mid 80s. Northwest Winds around 5 Mph, increasing to around 10 Mph in the afternoon. Chance of precipitation 30 percent.

Tonight 30 Jun Winnebago

Mostly cloudy early in the Evening, then becoming clear. A chance of Showers and Thunderstorms early in the evening. Lows in the lower 60s. Northwest Winds 5 to 10 Mph. Chance of precipitation 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sugar River Forest Preserve Temperature Statistics

June Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 1 June, 2025

    42.8 °F

  • Average June

    68.5 °F

  • Highest 23 June, 2025

    93.2 °F

Climate (2020–Present)

Janesville-Rock County (14.3 miles)

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  • Average Low 2020–2025

    40.5 °F

  • Average 2020–2025

    48.8 °F

  • Average High 2020–2025

    60.3 °F
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