RECMKX Recreational Boater Forecast for Inland Lakes for Southeast Wisconsin National Weather Service Milwaukee/Sullivan WI 1530 CDT Sat Sep 27 2025 ...Lake Wisconsin... .TONIGHT... Waves...............Half foot or less. Sky/Weather.........Sunny until 5 PM, then mostly clear. Min Temperature.....Around 49. Winds...............West winds 10 to 15 mph shifting to the north 5 to 10 mph in the evening, then becoming light after midnight. Water Temperature...68 degrees. UV Index............5 - Moderate. .SUNDAY... Waves...............Nearly calm. Sky/Weather.........Sunny. Max Temperature.....Around 77. Winds...............East winds up to 5 mph. Water Temperature...68 degrees. UV Index............5 - Moderate. .SUNDAY NIGHT... Waves...............Nearly calm. Sky/Weather.........Mostly clear. Min Temperature.....Mid 50s. Winds...............Light winds. .MONDAY... Waves...............Nearly calm. Sky/Weather.........Sunny. Max Temperature.....Mid 80s. Winds...............South winds around 5 mph. .TUESDAY... Waves...............Nearly calm. Sky/Weather.........Mostly sunny. Max Temperature.....Mid 80s. Winds...............Light winds becoming east around 5 mph in the afternoon. Sunrise: 06:50 AM CDT Sunset: 06:49 PM CDT $$