Roscoe Weather Forecast

    • 49
    • 75

    Increasing Clouds

    • 61
    • 74

    Chance Rain Showers

    • 62
    • 72

    Rain Showers

    • 50
    • 70

    Chance Rain Showers

    • 45
    • 65

    Partly Sunny

    • 49
    • 66

    Partly Sunny

    • 42
    • 65

    Partly Sunny

Today 28 Sep Winnebago

Mostly sunny. Highs around 60.

Tonight 28 Sep Winnebago

Mostly clear. Lows in the upper 40s. Southeast Winds around 5 Mph.

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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

    64.3 °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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