South Beloit Weather Forecast

    • 65
    • 79

    Rain Showers

    • 69
    • 83

    Rain Showers

    • 62
    • 83

    Chance Thunderstorms

    • 58
    • 78

    Partly Sunny

    • 64
    • 79

    Chance Rain Showers

    • 60
    • 79

    Chance Rain Showers

Today 14 Aug Winnebago

Mostly cloudy. A slight chance of Thunderstorms early in the morning. A chance of Showers in the morning. A chance of Showers with a slight chance of Thunderstorms late. Humid with Highs in the upper 70s. East Winds 5 to 10 Mph. Chance of precipitation 40 percent.

Tonight 14 Aug Winnebago

A chance of Showers in the evening. A chance of Thunderstorms. Showers after midnight. Locally heavy rainfall possible late. Lows in the mid 60s. East Winds 5 to 10 Mph. Chance of precipitation 80 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

South Beloit Temperature Statistics

August Temperature

Janesville-Rock County (8.7 miles)

  • Lowest 3 August, 2026

    53.6 °F

  • Average August

    69.4 °F

  • Highest 4 August, 2026

    84.2 °F

Climate (2021–2026)

Janesville-Rock County (8.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.3 °F
Get WillyWeather+ to remove ads