Roscoe Weather Forecast

    • 64
    • 79

    Mostly Cloudy

    • 65
    • 79

    Rain Showers Likely

    • 68
    • 83

    Rain Showers Likely

    • 61
    • 82

    Chance Thunderstorms

    • 58
    • 78

    Partly Sunny

    • 61
    • 78

    Slight Chance Thunderstorms

Today 13 Aug Winnebago

Mostly cloudy. Widespread dense fog early in the morning. A chance of Showers in the Morning, then Showers likely and a slight chance of Thunderstorms in the afternoon. Humid. Highs in the upper 70s. East Winds 5 to 10 Mph. Chance of precipitation 70 percent.

Tonight 13 Aug Winnebago

Mostly cloudy. A chance of Thunderstorms early in the evening. A chance of Showers. A slight chance of Thunderstorms in the late evening and overnight. Lows in the mid 60s. East Winds 5 to 10 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 °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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