South Beloit Weather Forecast

    • 61
    • 85

    Becoming Sunny

    • 64
    • 87

    Sunny

    • 67
    • 90

    Sunny

    • 68
    • 91

    Mostly Sunny

    • 67
    • 90

    Mostly Sunny

    • 66
    • 87

    Partly Sunny

Today 11 Jul Winnebago

Decreasing cloudiness. Highs in the mid 80s. Northeast Winds 5 to 10 Mph.

Tonight 11 Jul Winnebago

Clear. Lows in the lower 60s. Northeast Winds around 5 Mph.

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South Beloit Temperature Statistics

July Temperature

Janesville-Rock County (8.7 miles)

  • Lowest 7 July, 2026

    55.4 °F

  • Average July

    73 °F

  • Highest 1 July, 2026

    91.4 °F

Climate (2021–2026)

Janesville-Rock County (8.7 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.3 °F
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