Whitewater Lake Weather Forecast
- 55
- 82
Rain Showers
- 59
- 80
Mostly Sunny
- 56
- 83
Rain Showers Likely
- 53
- 71
Partly Sunny
- 53
- 74
Mostly Cloudy
- 53
- 76
Chance Rain Showers
Today 11 Jun Walworth
Patchy fog in the morning. Scattered Showers and chance of Thunderstorms in the late morning and early afternoon. Showers with Thunderstorms likely late in the afternoon. Locally heavy rainfall possible late in the afternoon. Highs in the mid 80s. Southwest Winds 5 to 10 Mph shifting to the south 10 to 20 Mph in the afternoon. Chance of precipitation near 100 percent.
Tonight 11 Jun Walworth
Mostly cloudy. Chance of Showers and isolated Thunderstorms after midnight. Patchy fog early in the morning. Near steady temperature in the upper 60s. Southwest Winds 5 to 10 Mph. Chance of precipitation 30 percent.
Whitewater Lake Temperature Statistics
June Temperature
Janesville-Rock County (19.9 miles)
Lowest 3 June, 2026
44.6 °FAverage June
66.7 °FHighest 4 June, 2026
87.8 °F
Climate (2021–Present)
Janesville-Rock County (19.9 miles)
Average Low 2021–2026
40.3 °FAverage 2021–2026
48.7 °FAverage High 2021–2026
60.4 °F