Big Hill Park Weather Forecast

    • -2
    • 4

    Snow Showers

    • 11
    • 16

    Snow

    • 6
    • 24

    Chance Snow

    • -11
    • 16

    Mostly Cloudy

    • -17
    • -4

    Cold

    • -13
    • -1

    Slight Chance Snow

    • -3
    • 8

    Cold

Today 19 Jan Rock

Partly sunny. West Winds 15 to 20 Mph.

Tonight 19 Jan Rock

Partly cloudy. Lows around 3 below. West Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Hill Park Temperature Statistics

January Temperature

Janesville-Rock County (4.3 miles)

  • Lowest 1 January, 2026

    8.6 °F

  • Average January

    27.6 °F

  • Highest 8 January, 2026

    55.4 °F

Climate (2021–Present)

Janesville-Rock County (4.3 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.3 °F
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