Roscoe Weather Forecast

    • 53
    • 76

    Mostly Cloudy

    • 54
    • 78

    Mostly Cloudy

    • 52
    • 80

    Partly Sunny

    • 50
    • 80

    Mostly Sunny

    • 57
    • 86

    Partly Sunny

    • 63
    • 87

    Chance Rain Showers

    • 63
    • 86

    Chance Thunderstorms

Today 30 May Winnebago

Mostly cloudy. Temperatures in the upper 70s. East Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 30 May Winnebago

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the lower 50s. East Winds 10 to 15 Mph with Gusts up to 25 Mph, Diminishing to 5 to 10 Mph after midnight.

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  • Temperature Real-Time

Roscoe Temperature Statistics

May Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 2 May, 2026

    30.2 °F

  • Average May

    56.2 °F

  • Highest 26 May, 2026

    87.8 °F

Climate (2021–Present)

Janesville-Rock County (14.3 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.4 °F
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