Roscoe Weather Forecast

    • 67
    • 84

    Rain Showers Likely

    • 62
    • 74

    Rain Showers Likely

    • 56
    • 78

    Partly Sunny

    • 59
    • 81

    Mostly Sunny

    • 64
    • 83

    Slight Chance Rain Showers

    • 66
    • 84

    Chance Thunderstorms

Today 4 Aug Winnebago

Partly cloudy in the Morning, then becoming mostly cloudy. A slight chance of Showers and Thunderstorms late. Highs in the mid 80s. Southwest Winds 5 to 10 Mph. Chance of precipitation 20 percent.

Tonight 4 Aug Winnebago

Mostly cloudy. A chance of Showers in the evening. A slight chance of Thunderstorms. Showers likely after midnight. Lows in the mid 60s. Southwest Winds around 5 Mph. Chance of precipitation 70 percent.

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Roscoe Temperature Statistics

August Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 1 August, 2026

    62.6 °F

  • Average August

    65.5 °F

  • Highest 1 August, 2026

    69.8 °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

    60.4 °F
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