South Beloit Weather Forecast

    • 11
    • 26

    Snow Showers

    • 16
    • 27

    Partly Sunny

    • 20
    • 40

    Chance Rain/Snow

    • 20
    • 33

    Chance Snow

    • 19
    • 34

    Partly Sunny

    • 27
    • 49

    Partly Sunny

    • 16
    • 42

    Mostly Cloudy

Today 22 Feb Winnebago

Mostly cloudy. Intermittent Flurries. Blustery. Highs in the mid 20s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 22 Feb Winnebago

Mostly cloudy in the Evening, then becoming partly cloudy. Intermittent Flurries in the evening. Blustery. Lows around 12. Northwest Winds 15 to 20 Mph, becoming north 10 to 15 Mph after midnight. Gusts up to 30 Mph.

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South Beloit Temperature Statistics

February Temperature

Janesville-Rock County (8.7 miles)

  • Lowest 4 February, 2026

    -4 °F

  • Average February

    28.7 °F

  • Highest 16 February, 2026

    64.4 °F

Climate (2021–Present)

Janesville-Rock County (8.7 miles)

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  • Average Low 2021–2026

    40.5 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    60.4 °F
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