Roscoe Weather Forecast

    • 59
    • 81

    Rain Showers

    • 51
    • 76

    Mostly Sunny

    • 58
    • 81

    Mostly Sunny

    • 57
    • 81

    Chance Rain Showers

    • 57
    • 77

    Chance Rain Showers

    • 60
    • 79

    Rain Showers Likely

Today 9 Sep Winnebago

Mostly cloudy. Numerous Showers early in the morning. A slight chance of Thunderstorms in the morning. Scattered Showers late in the morning. Humid with Highs around 80. West Winds 5 to 10 Mph. Chance of precipitation 70 percent.

Tonight 9 Sep Winnebago

A slight chance of Thunderstorms after midnight. Showers. A chance of Thunderstorms late. Near steady temperature in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of precipitation 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Roscoe Temperature Statistics

September Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 6 September, 2026

    57.2 °F

  • Average September

    74.4 °F

  • Highest 1 September, 2026

    91.4 °F

Climate (2021–2026)

Janesville-Rock County (14.3 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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