Roscoe Weather Forecast

    • 53
    • 78

    Partly Sunny

    • 62
    • 81

    Slight Chance Thunderstorms

    • 59
    • 83

    Slight Chance Thunderstorms

    • 56
    • 81

    Mostly Sunny

    • 58
    • 81

    Partly Sunny

    • 63
    • 81

    Chance Thunderstorms

Today 24 Aug Winnebago

Mostly sunny late in the Morning, then becoming partly cloudy. Highs in the upper 70s. Northwest Winds around 5 Mph.

Tonight 24 Aug Winnebago

Mostly clear. Lows in the mid 50s. East Winds around 5 Mph, becoming south after midnight.

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Roscoe Temperature Statistics

August Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 3 August, 2026

    53.6 °F

  • Average August

    68.7 °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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