South Beloit Weather Forecast

    • 39
    • 55

    Sunny

    • 38
    • 61

    Sunny

    • 40
    • 65

    Mostly Sunny

    • 43
    • 69

    Mostly Sunny

    • 46
    • 70

    Mostly Sunny

    • 48
    • 71

    Partly Sunny

Today 17 Oct Winnebago

Sunny. Widespread frost early in the morning. Highs in the mid 50s. Southwest Winds 5 to 10 Mph.

Tonight 17 Oct Winnebago

Clear. Lows in the upper 30s. Southwest Winds 5 to 10 Mph.

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South Beloit Temperature Statistics

October Temperature

Janesville-Rock County (8.7 miles)

  • Lowest 2 October, 2026

    41 °F

  • Average October

    58.2 °F

  • Highest 12 October, 2026

    86 °F

Climate (2021–2026)

Janesville-Rock County (8.7 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.6 °F

  • Average High 2021–2026

    60.1 °F
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