RECMKX Recreational Boater Forecast for Inland Lakes for Southeast Wisconsin National Weather Service Milwaukee/Sullivan WI 1532 CDT Sat Nov 1 2025 ...Sinissippi Lake... .TONIGHT... Waves...............Half foot or less. Sky/Weather.........Mostly sunny until 8 PM, then mostly clear. Slight chance of rain. Min Temperature.....Around 29. Winds...............North winds up to 5 mph in the afternoon becoming light. Water Temperature...48 degrees. UV Index............3 - Moderate. .SUNDAY... Waves...............Half foot to 1 foot. Sky/Weather.........Sunny until 2 PM, then partly sunny. Max Temperature.....Around 52. Winds...............Southwest winds 10 to 15 mph. Water Temperature...48 degrees. UV Index............3 - Moderate. .SUNDAY NIGHT... Waves...............1.5 to 2 feet. Sky/Weather.........Partly cloudy. Chance of rain. Min Temperature.....Upper 30s. Winds...............Southwest winds 10 to 15 mph. .MONDAY... Waves...............Half foot to 1 foot. Sky/Weather.........Sunny. Max Temperature.....Upper 50s. Winds...............West winds around 10 mph. .TUESDAY... Waves...............Half foot or less. Sky/Weather.........Partly sunny. Max Temperature.....Upper 50s. Winds...............South winds around 5 mph. Sunrise: 07:28 AM CDT Sunset: 05:48 PM CDT $$