Roscoe Weather Forecast

    • 59
    • 83

    Becoming Sunny

    • 56
    • 80

    Mostly Sunny

    • 58
    • 81

    Partly Sunny

    • 64
    • 79

    Mostly Cloudy

    • 69
    • 86

    Chance Rain Showers

    • 67
    • 86

    Chance Rain Showers

Today 26 Aug Winnebago

Partly cloudy. Highs in the lower 80s. Northwest Winds 10 to 15 Mph.

Tonight 26 Aug Winnebago

Clear. Lows in the lower 60s. Northwest Winds 5 to 10 Mph.

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Roscoe Temperature Statistics

August Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 24 August, 2026

    50 °F

  • Average August

    68 °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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