Roscoe Weather Forecast

    • 55
    • 74

    Chance Rain Showers

    • 55
    • 79

    Chance Rain Showers

    • 58
    • 85

    Mostly Sunny

    • 60
    • 88

    Slight Chance Rain Showers

    • 58
    • 84

    Slight Chance Thunderstorms

    • 57
    • 81

    Chance Rain Showers

Today 23 May Winnebago

Mostly cloudy. Highs in the mid 70s. East Winds around 5 Mph.

Tonight 23 May Winnebago

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms. Lows in the mid 50s. Southeast Winds around 5 Mph. Chance of precipitation 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Roscoe Temperature Statistics

May Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 2 May, 2026

    30.2 °F

  • Average May

    53.9 °F

  • Highest 17 May, 2026

    84.2 °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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