RECMKX Recreational Boater Forecast for Inland Lakes for Southeast Wisconsin National Weather Service Milwaukee/Sullivan WI 1040 CDT Thu Jun 4 2026 ...Lake Monona... .TODAY... Waves...............Half foot to 1 foot. Sky/Weather.........Mostly sunny. Max Temperature.....Around 86. Winds...............Southwest winds 10 to 15 mph. Water Temperature...68 degrees. UV Index............9 - Very High. .TONIGHT... Waves...............Half foot to 1 foot. Sky/Weather.........Partly cloudy until 11 PM, then mostly cloudy. Showers and chance of thunderstorms after 11 PM. Min Temperature.....Around 65. Winds...............Southwest winds 5 to 10 mph. Water Temperature...68 degrees. UV Index............9 - Very High. .FRIDAY... Waves...............Half foot to 1 foot. Sky/Weather.........Mostly cloudy then becoming mostly sunny. Showers and chance of thunderstorms. Max Temperature.....Lower 80s. Winds...............Southwest winds around 10 mph. .SATURDAY... Waves...............Nearly calm. Sky/Weather.........Mostly sunny. Slight chance of showers in the morning, then slight chance of thunderstorms in the afternoon. Max Temperature.....Mid 80s. Winds...............Northwest winds around 5 mph. .SUNDAY... Waves...............Half foot to 1 foot. Sky/Weather.........Mostly sunny. Max Temperature.....Mid 80s. Winds...............East winds 5 to 10 mph. Sunrise: 05:19 AM CDT Sunset: 08:32 PM CDT $$