Roscoe Weather Forecast

    • 59
    • 80

    Thunderstorms Likely

    • 54
    • 79

    Slight Chance Thunderstorms

    • 52
    • 76

    Partly Sunny

    • 55
    • 77

    Partly Sunny

    • 61
    • 79

    Chance Rain Showers

    • 59
    • 81

    Slight Chance Thunderstorms

Today 21 Aug Winnebago

Mostly cloudy. A chance of Showers and Thunderstorms late in the Morning, then Showers and Thunderstorms likely in the afternoon. Highs around 80. Southwest Winds 5 to 10 Mph. Chance of precipitation 60 percent.

Tonight 21 Aug Winnebago

Partly cloudy. A chance of Showers and Thunderstorms early in the Evening, then a slight chance of Showers and Thunderstorms late in the evening. Lows around 60. West Winds around 5 Mph. Chance of precipitation 50 percent.

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Roscoe Temperature Statistics

August Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 3 August, 2026

    53.6 °F

  • Average August

    69.4 °F

  • Highest 4 August, 2026

    84.2 °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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