Roscoe Weather Forecast

    • 71
    • 81

    Chance Thunderstorms

    • 60
    • 83

    Slight Chance Rain Showers

    • 60
    • 80

    Partly Sunny

    • 63
    • 81

    Rain Showers

    • 54
    • 77

    Slight Chance Thunderstorms

    • 54
    • 74

    Partly Sunny

Today 15 Aug Winnebago

Mostly cloudy. A chance of Showers early in the Morning, then a slight chance of Showers in the late morning and afternoon. A slight chance of Thunderstorms late. Highs in the lower 80s. Southeast Winds around 5 Mph, becoming south in the afternoon. Chance of precipitation 30 percent.

Tonight 15 Aug Winnebago

Mostly cloudy. A slight chance of Thunderstorms in the evening. A chance of Showers. A chance of Thunderstorms after midnight. Humid with Lows in the lower 70s. Southwest Winds around 5 Mph. Chance of precipitation 40 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

    69.8 °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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