RECMKX Recreational Boater Forecast for Inland Lakes for Southeast Wisconsin National Weather Service Milwaukee/Sullivan WI 1431 CST Fri Nov 21 2025 ...Lake Monona... .TONIGHT... Waves...............Nearly calm. Sky/Weather.........Mostly cloudy until 5 PM, then partly sunny until 8 PM, then mostly clear. Min Temperature.....Around 26. Winds...............North winds up to 5 mph in the afternoon and evening becoming light. Water Temperature...37 degrees. UV Index............2 - Low. .SATURDAY... Waves...............Half foot to 1 foot. Sky/Weather.........Partly sunny until 5 PM, then sunny. Max Temperature.....Around 49. Winds...............Southwest winds 10 to 15 mph. Water Temperature...37 degrees. UV Index............2 - Low. .SATURDAY NIGHT... Waves...............Half foot to 1 foot. Sky/Weather.........Mostly clear. Min Temperature.....Lower 30s. Winds...............Northwest winds 5 to 10 mph. .SUNDAY... Waves...............Half foot or less. Sky/Weather.........Sunny. Max Temperature.....Lower 50s. Winds...............Northwest winds around 5 mph shifting to the southwest in the afternoon. .MONDAY... Waves...............Half foot to 1 foot. Sky/Weather.........Mostly cloudy. Showers. Max Temperature.....Lower 50s. Winds...............South winds around 10 mph. Sunrise: 07:56 AM CDT Sunset: 05:30 PM CDT $$