Roscoe Weather Forecast

    • 64
    • 73

    Rain Showers Likely

    • 55
    • 77

    Rain Showers Likely

    • 61
    • 71

    Rain Showers

    • 59
    • 77

    Chance Rain Showers

    • 61
    • 78

    Rain Showers Likely

    • 57
    • 76

    Rain Showers Likely

Today 14 Sep Winnebago

Partly cloudy in the Morning, then becoming mostly cloudy. Patchy fog early in the morning. A slight chance of Showers in the afternoon. Highs in the lower 70s. Southeast Winds 5 to 10 Mph, increasing to 10 to 15 Mph with Gusts up to 25 Mph in the afternoon. Chance of precipitation 20 percent.

Tonight 14 Sep Winnebago

Mostly cloudy. A slight chance of Showers early in the evening. Showers likely with a chance of Thunderstorms after midnight. Breezy, warmer with Lows in the mid 60s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of precipitation 70 percent.

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Roscoe Temperature Statistics

September Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 11 September, 2026

    53.6 °F

  • Average September

    70.3 °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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