Roscoe Weather Forecast
- 49
- 78
Mostly Sunny
- 58
- 84
Partly Sunny
- 53
- 76
Partly Sunny
- 55
- 80
Partly Sunny
- 54
- 82
Mostly Sunny
- 56
- 81
Mostly Sunny
Today 28 May Winnebago
Mostly sunny. Highs in the upper 70s. Northeast Winds 10 to 15 Mph.
Tonight 28 May Winnebago
Partly cloudy. Lows in the upper 40s. East Winds 5 to 10 Mph.
Roscoe Temperature Statistics
May Temperature
Janesville-Rock County (14.3 miles)
Lowest 2 May, 2026
30.2 °FAverage May
55.5 °FHighest 26 May, 2026
87.8 °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