Roscoe Weather Forecast

    • 50
    • 66

    Mostly Cloudy

    • 52
    • 73

    Chance Rain Showers

    • 53
    • 78

    Partly Sunny

    • 56
    • 85

    Mostly Sunny

    • 59
    • 86

    Chance Rain Showers

    • 59
    • 84

    Chance Rain Showers

Today 22 May Winnebago

Mostly cloudy. Highs in the upper 60s. East Winds 10 to 15 Mph. Gusts up to 25 Mph in the afternoon.

Tonight 22 May Winnebago

Mostly cloudy. Lows around 50. East Winds 10 to 15 Mph.

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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

    54 °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

    48.8 °F

  • Average High 2021–2026

    60.4 °F
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