Roscoe Weather Forecast

    • 63
    • 89

    Slight Chance Thunderstorms

    • 63
    • 83

    Mostly Sunny

    • 69
    • 86

    Rain Showers Likely

    • 57
    • 84

    Mostly Sunny

    • 56
    • 78

    Mostly Sunny

    • 59
    • 81

    Partly Sunny

Today 18 Jul Winnebago

Partly cloudy in the morning then clearing. A slight chance of Showers and Thunderstorms in the morning. Highs in the upper 80s. West Winds 10 to 15 Mph, becoming northwest in the afternoon. Chance of precipitation 20 percent.

Tonight 18 Jul Winnebago

Mostly clear. Patchy smoke in the late evening and overnight. Lows in the lower 60s. Northeast Winds 5 to 10 Mph.

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Roscoe Temperature Statistics

July Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 12 July, 2026

    53.6 °F

  • Average July

    73.8 °F

  • Highest 14 July, 2026

    95 °F

Climate (2021–2026)

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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