Roscoe Weather Forecast
- 55
- 79
Mostly Sunny
- 59
- 84
Mostly Sunny
- 61
- 89
Mostly Sunny
- 57
- 87
Slight Chance Thunderstorms
- 55
- 82
Partly Sunny
- 56
- 82
Partly Sunny
- 55
- 78
Mostly Sunny
Today 24 May Winnebago
Sunny. Highs in the upper 70s. Northwest Winds 5 to 10 Mph.
Tonight 24 May Winnebago
Clear. Lows in the mid 50s. East Winds around 5 Mph, becoming south after midnight.
Roscoe Temperature Statistics
May Temperature
Janesville-Rock County (14.3 miles)
Lowest 2 May, 2026
30.2 °FAverage May
53.8 °FHighest 17 May, 2026
84.2 °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