South Beloit Weather Forecast

    • 49
    • 57

    Rain Showers Likely

    • 60
    • 73

    Rain Showers Likely

    • 64
    • 76

    Rain Showers Likely

    • 61
    • 81

    Rain Showers

    • 57
    • 76

    Chance Rain Showers

    • 57
    • 77

    Chance Rain Showers

Today 11 Apr Winnebago

Partly cloudy late in the Morning, then becoming mostly cloudy. A slight chance of Showers late. Highs in the upper 50s. Southeast Winds around 10 Mph. Chance of precipitation 20 percent.

Tonight 11 Apr Winnebago

Mostly cloudy. A chance of Showers. Lows in the upper 40s. Southeast Winds 10 to 15 Mph. Gusts up to 25 Mph after midnight. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Beloit Temperature Statistics

April Temperature

Janesville-Rock County (8.7 miles)

  • Lowest 7 April, 2026

    23 °F

  • Average April

    42.4 °F

  • Highest 8 April, 2026

    71.6 °F

Climate (2021–Present)

Janesville-Rock County (8.7 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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