RECMKX Recreational Boater Forecast for Inland Lakes for Southeast Wisconsin National Weather Service Milwaukee/Sullivan WI 1531 CDT Sat May 2 2026 ...Whitewater Lake... .TONIGHT... Waves...............Half foot or less. Sky/Weather.........Mostly cloudy until 5 PM, then partly cloudy until 2 AM, then mostly cloudy. Min Temperature.....Around 42. Winds...............Southwest winds 10 to 15 mph. Water Temperature...42 degrees. UV Index............2 - Low. .SUNDAY... Waves...............Half foot to 1 foot. Sky/Weather.........Partly sunny until 5 PM, then sunny. Slight chance of rain showers until 2 PM. Max Temperature.....Around 64. Winds...............Southwest winds 15 to 20 mph. Water Temperature...42 degrees. UV Index............2 - Low. .SUNDAY NIGHT... Waves...............Half foot or less. Sky/Weather.........Mostly clear. Min Temperature.....Lower 40s. Winds...............Southwest winds around 5 mph. .MONDAY... Waves...............Half foot to 1 foot. Sky/Weather.........Mostly sunny. Max Temperature.....Mid 70s. Winds...............Southwest winds around 15 mph. .TUESDAY... Waves...............Nearly calm. Sky/Weather.........Mostly cloudy. Chance of showers. Max Temperature.....Mid 50s. Winds...............North winds around 10 mph. Sunrise: 05:47 AM CDT Sunset: 07:57 PM CDT $$