South Beloit Weather Forecast

    • 71
    • 91

    Smoke

    • 62
    • 89

    Mostly Sunny

    • 64
    • 84

    Partly Sunny

    • 69
    • 87

    Chance Thunderstorms

    • 59
    • 83

    Slight Chance Rain Showers

    • 57
    • 79

    Mostly Sunny

Today 17 Jul Winnebago

Partly cloudy. Smoke early in the Morning, then Areas of smoke late in the morning. Patchy smoke early in the afternoon. A slight chance of Showers and Thunderstorms early in the morning. Scattered Showers and Thunderstorms in the afternoon. Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Chance of precipitation 50 percent.

Tonight 17 Jul Winnebago

Partly cloudy in the Evening, then clearing. Isolated Showers and Thunderstorms early in the evening. Humid with Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of precipitation 20 percent.

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South Beloit Temperature Statistics

July Temperature

Janesville-Rock County (8.7 miles)

  • Lowest 12 July, 2026

    53.6 °F

  • Average July

    73 °F

  • Highest 14 July, 2026

    95 °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

    60.4 °F
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