Big Hill Park Weather Forecast

    • 59
    • 81

    Rain Showers

    • 44
    • 69

    Chance Rain Showers

    • 44
    • 69

    Partly Sunny

    • 50
    • 67

    Rain Showers Likely

    • 49
    • 68

    Rain Showers

    • 43
    • 62

    Partly Sunny

    • 40
    • 59

    Slight Chance Rain Showers

Today 23 Apr Rock

Partly sunny. South Winds 15 to 20 Mph.

Tonight 23 Apr Rock

Mostly cloudy. Scattered Showers through around midnight. Chance of Thunderstorms through the night. Numerous Showers after midnight. Lows in the upper 50s. South Winds 10 to 15 Mph. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Hill Park Temperature Statistics

April Temperature

Janesville-Rock County (4.3 miles)

  • Lowest 7 April, 2026

    23 °F

  • Average April

    47.9 °F

  • Highest 17 April, 2026

    78.8 °F

Climate (2021–Present)

Janesville-Rock County (4.3 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    60.4 °F
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