Roscoe Weather Forecast
- 42
- 62
Increasing Clouds
- 48
- 76
Chance Rain Showers
- 39
- 62
Partly Sunny
- 48
- 68
Chance Rain Showers
- 55
- 72
Chance Rain Showers
- 55
- 77
Chance Rain Showers
Today 11 May Winnebago
Sunny. Highs in the lower 60s. Northeast Winds 5 to 10 Mph.
Tonight 11 May Winnebago
Partly cloudy. Lows in the lower 40s. Southeast Winds 5 to 10 Mph.
Roscoe Temperature Statistics
May Temperature
Janesville-Rock County (14.3 miles)
Lowest 2 May, 2026
30.2 °FAverage May
48.3 °FHighest 4 May, 2026
80.6 °F
Climate (2021–Present)
Janesville-Rock County (14.3 miles)
Average Low 2021–2026
40.4 °FAverage 2021–2026
48.7 °FAverage High 2021–2026
60.4 °F