RECMKX Recreational Boater Forecast for Inland Lakes for Southeast Wisconsin National Weather Service Milwaukee/Sullivan WI 1530 CDT Sat Apr 25 2026 ...Lake Monona... .TONIGHT... Waves...............Half foot to 1 foot. Sky/Weather.........Sunny until 11 PM, then partly cloudy. Min Temperature.....Around 44. Winds...............East winds 5 to 10 mph. Water Temperature...62 degrees. UV Index............5 - Moderate. .SUNDAY... Waves...............Half foot to 1 foot. Sky/Weather.........Partly sunny. Max Temperature.....Around 69. Winds...............Southeast winds 5 to 10 mph. Water Temperature...62 degrees. UV Index............5 - Moderate. .SUNDAY NIGHT... Waves...............1 to 1.5 feet. Sky/Weather.........Partly cloudy then becoming mostly cloudy. Min Temperature.....Lower 50s. Winds...............Southeast winds 10 to 15 mph. .MONDAY... Waves...............1.5 to 2 feet. Sky/Weather.........Mostly cloudy. Showers through the day. Chance of thunderstorms in the afternoon. Max Temperature.....Upper 60s. Winds...............Southeast winds around 15 mph. .TUESDAY... Waves...............1 to 1.5 feet. Sky/Weather.........Partly sunny. Max Temperature.....Around 60. Winds...............West winds 10 to 15 mph. Sunrise: 05:59 AM CDT Sunset: 07:51 PM CDT $$