Roscoe Weather Forecast

    • 51
    • 70

    Chance Rain Showers

    • 57
    • 75

    Rain Showers Likely

    • 55
    • 85

    Rain Showers Likely

    • 62
    • 81

    Rain Showers Likely

    • 61
    • 84

    Rain Showers Likely

    • 52
    • 75

    Rain Showers Likely

Today 14 May Winnebago

Sunny. Highs around 70. South Winds around 5 Mph.

Tonight 14 May Winnebago

Mostly cloudy. A slight chance of Showers late in the evening. A chance of Showers after midnight. Lows in the lower 50s. Southeast Winds 5 to 10 Mph. Chance of precipitation 40 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

    48.5 °F

  • Highest 4 May, 2026

    80.6 °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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