RECMKX Recreational Boater Forecast for Inland Lakes for Southeast Wisconsin National Weather Service Milwaukee/Sullivan WI 317 CDT Fri Sep 26 2025 ...Whitewater Lake... .TODAY... Waves...............Nearly calm. Sky/Weather.........Sunny. Max Temperature.....Around 80. Winds...............West winds around 5 mph shifting to the northwest in the afternoon. Water Temperature...66 degrees. UV Index............5 - Moderate. .TONIGHT... Waves...............Nearly calm. Sky/Weather.........Partly cloudy. Patchy fog after 2 AM. Min Temperature.....Around 55. Winds...............East winds up to 5 mph in the evening becoming light. Water Temperature...66 degrees. UV Index............5 - Moderate. .SATURDAY... Waves...............Nearly calm. Sky/Weather.........Sunny. Max Temperature.....Lower 80s. Winds...............West winds 5 to 10 mph. .SUNDAY... Waves...............Nearly calm. Sky/Weather.........Sunny. Max Temperature.....Around 80. Winds...............Northeast winds around 5 mph. .MONDAY... Waves...............Nearly calm. Sky/Weather.........Sunny. Max Temperature.....Lower 80s. Winds...............Light winds becoming southeast around 5 mph in the afternoon. Sunrise: 06:46 AM CDT Sunset: 06:47 PM CDT $$