Whitewater Weather Forecast
- 35
- 42
Gradual Clearing
- 37
- 50
Rain
- 31
- 42
Rain/Snow Likely
- 18
- 35
Snow Likely
- 17
- 27
Partly Sunny
- 26
- 34
Mostly Cloudy
Today 7 Jan Walworth
Cloudy until late afternoon then becoming partly sunny. Areas of freezing fog in the morning. Areas of fog until late afternoon. Highs in the lower 40s. Southwest Winds 5 to 10 Mph.
Tonight 7 Jan Walworth
Partly cloudy. Near steady temperature in the upper 30s. South Winds 5 to 10 Mph.
Whitewater Temperature Statistics
January Temperature
Janesville-Rock County (21.1 miles)
Lowest 1 January, 2026
8.6 °FAverage January
22.4 °FHighest 5 January, 2026
37.4 °F
Climate (2021–Present)
Janesville-Rock County (21.1 miles)
Average Low 2021–2026
40.4 °FAverage 2021–2026
48.7 °FAverage High 2021–2026
60.2 °F