RECMKX Recreational Boater Forecast for Inland Lakes for Southeast Wisconsin National Weather Service Milwaukee/Sullivan WI 316 CDT Sun Aug 16 2026 ...Lake Monona... .TODAY... Waves...............Half foot to 1 foot. Sky/Weather.........Partly sunny. Max Temperature.....Around 84. Winds...............Northwest winds 5 to 10 mph. Water Temperature...68 degrees. UV Index............7 - High. .TONIGHT... Waves...............Half foot to 1 foot. Sky/Weather.........Partly cloudy. Min Temperature.....Around 63. Winds...............North winds up to 5 mph. Water Temperature...68 degrees. UV Index............7 - High. .MONDAY... Waves...............Nearly calm. Sky/Weather.........Sunny. Max Temperature.....Lower 80s. Winds...............Light winds becoming west around 5 mph in the afternoon. .TUESDAY... Waves...............Half foot to 1 foot. Sky/Weather.........Partly sunny. Chance of showers through the day. Slight chance of thunderstorms in the afternoon. Max Temperature.....Lower 80s. Winds...............West winds around 10 mph. .WEDNESDAY... Waves...............Nearly calm. Sky/Weather.........Mostly sunny. Slight chance of showers. Max Temperature.....Upper 70s. Winds...............Northeast winds around 5 mph shifting to the northwest in the afternoon. Sunrise: 06:04 AM CDT Sunset: 07:59 PM CDT $$