South Beloit Weather Forecast

    • 66
    • 80

    Chance Thunderstorms

    • 69
    • 80

    Rain Showers

    • 72
    • 87

    Chance Thunderstorms

    • 69
    • 89

    Rain Showers Likely

    • 59
    • 87

    Thunderstorms Likely

    • 62
    • 86

    Slight Chance Thunderstorms

    • 60
    • 86

    Chance Thunderstorms

Today 7 Jun Winnebago

Mostly cloudy. A chance of Showers and Thunderstorms in the afternoon. Highs in the mid 80s. Southeast Winds 10 to 15 Mph. Chance of precipitation 50 percent.

Tonight 7 Jun Winnebago

Mostly cloudy. A chance of Showers and Thunderstorms. Lows in the upper 60s. East Winds 5 to 10 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Beloit Temperature Statistics

June Temperature

Janesville-Rock County (8.7 miles)

  • Lowest 3 June, 2026

    44.6 °F

  • Average June

    64.4 °F

  • Highest 4 June, 2026

    87.8 °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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