Roscoe Weather Forecast

    • 71
    • 90

    Chance Thunderstorms

    • 72
    • 90

    Slight Chance Thunderstorms

    • 69
    • 91

    Chance Thunderstorms

    • 69
    • 85

    Slight Chance Thunderstorms

    • 67
    • 87

    Slight Chance Thunderstorms

    • 63
    • 84

    Slight Chance Thunderstorms

    • 61
    • 82

    Partly Sunny

Today 31 Aug Winnebago

Mostly cloudy. Scattered Showers and a slight chance of Thunderstorms. Temperatures in the upper 80s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 50 percent.

Tonight 31 Aug Winnebago

Mostly cloudy in the Evening, then becoming partly cloudy. Scattered Showers and a slight chance of Thunderstorms in the Evening, then isolated Showers after midnight. Humid. Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of precipitation 30 percent.

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Roscoe Temperature Statistics

August Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 24 August, 2026

    50 °F

  • Average August

    67.7 °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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