Roscoe Weather Forecast

    • 47
    • 71

    Decreasing Clouds

    • 49
    • 72

    Mostly Sunny

    • 58
    • 73

    Rain Showers Likely

    • 59
    • 70

    Rain Showers Likely

    • 53
    • 70

    Chance Rain Showers

    • 50
    • 65

    Chance Rain Showers

Today 27 Sep Winnebago

Mostly cloudy in the Morning, then becoming partly cloudy. Patchy fog early in the morning. Highs around 70. Light and variable Winds, becoming northeast around 5 Mph in the afternoon.

Tonight 27 Sep Winnebago

Partly cloudy. Lows in the upper 40s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Roscoe Temperature Statistics

September Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 14 September, 2026

    42.8 °F

  • Average September

    64.8 °F

  • Highest 1 September, 2026

    91.4 °F

Climate (2021–2026)

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

    60.2 °F
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