Roscoe Weather Forecast

    • 55
    • 72

    Decreasing Clouds

    • 61
    • 80

    Chance Rain Showers

    • 73
    • 86

    Mostly Cloudy

    • 76
    • 91

    Partly Sunny

    • 75
    • 93

    Slight Chance Thunderstorms

    • 73
    • 94

    Mostly Sunny

Today 26 Jun Winnebago

Mostly cloudy late in the Morning, then becoming partly cloudy. Intermittent Sprinkles late in the morning. Highs in the lower 70s. East Winds around 10 Mph.

Tonight 26 Jun Winnebago

Mostly clear. Lows in the mid 50s. Northeast Winds 5 to 10 Mph.

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Roscoe Temperature Statistics

June Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 3 June, 2026

    44.6 °F

  • Average June

    64.9 °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

    48.7 °F

  • Average High 2021–2026

    60.3 °F
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