Roscoe Weather Forecast

    • 54
    • 83

    Partly Sunny

    • 57
    • 81

    Partly Sunny

    • 68
    • 85

    Rain Showers Likely

    • 56
    • 84

    Chance Rain Showers

    • 52
    • 78

    Mostly Sunny

    • 59
    • 81

    Chance Rain Showers

    • 60
    • 82

    Chance Rain Showers

Today 6 Sep Winnebago

Partly cloudy. Temperatures in the lower 80s. East Winds 5 to 10 Mph.

Tonight 6 Sep Winnebago

Partly cloudy. Lows in the mid 50s. East Winds around 5 Mph.

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Roscoe Temperature Statistics

September Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 1 September, 2026

    69.8 °F

  • Average September

    77.2 °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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