RECMKX Recreational Boater Forecast for Inland Lakes for Southeast Wisconsin National Weather Service Milwaukee/Sullivan WI 1040 CDT Sat Nov 1 2025 ...Lake Mendota... .TODAY... Waves...............Half foot to 1 foot. Sky/Weather.........Partly sunny. Chance of rain. Max Temperature.....Around 45. Winds...............North winds up to 5 mph. Water Temperature...44 degrees. UV Index............2 - Low. .TONIGHT... Waves...............Nearly calm. Sky/Weather.........Mostly clear. Min Temperature.....Around 31. Winds...............North winds up to 5 mph in the evening becoming light. Water Temperature...44 degrees. UV Index............2 - Low. .SUNDAY... Waves...............1 to 1.5 feet. Sky/Weather.........Mostly sunny. Max Temperature.....Lower 50s. Winds...............Southwest winds around 5 mph increasing to around 15 mph in the afternoon. .MONDAY... Waves...............1.5 to 2 feet. Sky/Weather.........Sunny. Max Temperature.....Upper 50s. Winds...............West winds around 15 mph. .TUESDAY... Waves...............Half foot to 1 foot. Sky/Weather.........Mostly sunny. Max Temperature.....Upper 50s. Winds...............South winds 5 to 10 mph. Sunrise: 07:31 AM CDT Sunset: 05:52 PM CDT $$