Big Hill Park Weather Forecast

    • 69
    • 84

    Chance Thunderstorms

    • 69
    • 90

    Thunderstorms Likely

    • 65
    • 83

    Chance Rain Showers

    • 69
    • 88

    Partly Sunny

    • 68
    • 91

    Chance Thunderstorms

    • 64
    • 85

    Chance Thunderstorms

Today 25 Jun Rock

Partly sunny. Light Showers likely and slight chance of Thunderstorms late in the Morning, then chance of light Showers and Thunderstorms in the afternoon. Highs in the lower 80s. East Winds 5 to 10 Mph. Chance of precipitation 70 percent.

Tonight 25 Jun Rock

Partly cloudy then becoming mostly cloudy in the late evening and early morning then becoming partly cloudy. Light Showers likely and chance of Thunderstorms. Lows in the upper 60s. Southeast Winds 5 to 10 Mph. Chance of precipitation 70 percent.

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Big Hill Park Temperature Statistics

June Temperature

Janesville-Rock County (4.3 miles)

  • Lowest 1 June, 2025

    42.8 °F

  • Average June

    67.3 °F

  • Highest 23 June, 2025

    93.2 °F

Climate (2020–Present)

Janesville-Rock County (4.3 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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