Roscoe Weather Forecast
- 60
- 85
Partly Sunny
- 61
- 83
Chance Thunderstorms
- 61
- 78
Chance Thunderstorms
- 61
- 76
Rain Showers Likely
- 59
- 77
Chance Rain Showers
- 55
- 76
Chance Rain Showers
Today 18 Sep Winnebago
Mostly sunny through mid Morning, then becoming partly cloudy. Patchy fog through mid morning. Highs in the mid 80s. Southeast Winds around 5 Mph.
Tonight 18 Sep Winnebago
Partly cloudy. Lows around 60. East Winds 5 to 10 Mph.
Roscoe Temperature Statistics
September Temperature
Janesville-Rock County (14.3 miles)
Lowest 7 September, 2025
39.2 °FAverage September
59.4 °FHighest 14 September, 2025
84.2 °F
Climate (2020–Present)
Janesville-Rock County (14.3 miles)
Average Low 2020–2025
40.4 °FAverage 2020–2025
48.7 °FAverage High 2020–2025
60.3 °F