Roscoe Weather Forecast

    • 47
    • 68

    Partly Sunny

    • 41
    • 69

    Partly Sunny

    • 37
    • 60

    Partly Sunny

    • 40
    • 60

    Rain Showers Likely

    • 43
    • 63

    Rain Showers Likely

    • 43
    • 65

    Partly Sunny

Today 8 May Winnebago

Partly cloudy. Highs in the upper 60s. South Winds 5 to 10 Mph.

Tonight 8 May Winnebago

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 40s. Southwest Winds 5 to 10 Mph.

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Roscoe Temperature Statistics

May Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 2 May, 2026

    30.2 °F

  • Average May

    47.7 °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

    48.7 °F

  • Average High 2021–2026

    60.4 °F
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