Roscoe Weather Forecast

    • 55
    • 89

    Slight Chance Thunderstorms

    • 49
    • 77

    Sunny

    • 56
    • 84

    Mostly Sunny

    • 53
    • 82

    Mostly Sunny

    • 53
    • 80

    Mostly Sunny

    • 53
    • 81

    Mostly Sunny

Today 27 May Winnebago

Partly cloudy late in the morning then clearing. Highs in the upper 80s. Northeast Winds around 5 Mph.

Tonight 27 May Winnebago

Partly cloudy in the Evening, then becoming clear. Lows in the mid 50s. Northeast Winds around 10 Mph. Gusts up to 25 Mph after midnight.

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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

    54.9 °F

  • Highest 25 May, 2026

    86 °F

Climate (2021–Present)

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

    60.4 °F
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