Roscoe Weather Forecast

    • 65
    • 83

    Chance Thunderstorms

    • 63
    • 79

    Chance Thunderstorms

    • 62
    • 80

    Rain Showers Likely

    • 67
    • 81

    Chance Thunderstorms

    • 61
    • 82

    Slight Chance Thunderstorms

    • 58
    • 78

    Partly Sunny

Today 12 Aug Winnebago

Mostly cloudy in the Morning, then becoming partly cloudy. Areas of fog early in the morning. Showers likely with a chance of Thunderstorms in the Morning, then a chance of Showers with a slight chance of Thunderstorms in the afternoon. Humid with Highs in the lower 80s. East Winds around 5 Mph, becoming southwest in the afternoon. Chance of precipitation 70 percent.

Tonight 12 Aug Winnebago

Mostly cloudy. Areas of fog. A slight chance of Showers and Thunderstorms. Near steady temperature around 70. East Winds around 5 Mph. Chance of precipitation 20 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

    68.5 °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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