Roscoe Weather Forecast

    • 76
    • 93

    Becoming Sunny

    • 75
    • 95

    Mostly Sunny

    • 76
    • 94

    Mostly Sunny

    • 74
    • 93

    Chance Thunderstorms

    • 71
    • 89

    Chance Thunderstorms

    • 69
    • 88

    Chance Thunderstorms

Today 29 Jun Winnebago

Mostly sunny. Breezy. Highs in the lower 90s. South Winds 10 to 15 Mph, increasing to 15 to 20 Mph in the afternoon. Gusts up to 30 Mph. Heat index Values up to 104.

Tonight 29 Jun Winnebago

Clear with Lows in the mid 70s. South Winds 10 to 15 Mph. Gusts up to 25 Mph in the evening. Heat index Values up to 101 early in the evening.

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Roscoe Temperature Statistics

June Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 3 June, 2026

    44.6 °F

  • Average June

    64.8 °F

  • Highest 4 June, 2026

    87.8 °F

Climate (2021–2026)

Janesville-Rock County (14.3 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.6 °F

  • Average High 2021–2026

    60.3 °F
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