RECMKX Recreational Boater Forecast for Inland Lakes for Southeast Wisconsin National Weather Service Milwaukee/Sullivan WI 1433 CST Mon Nov 3 2025 ...Lake Koshkonong... .TONIGHT... Waves...............1 to 1.5 feet. Sky/Weather.........Sunny until 5 PM, then partly cloudy until 5 AM, then mostly cloudy. Min Temperature.....Around 35. Winds...............West winds 10 to 15 mph with gusts to around 30 mph shifting to the southwest around 5 mph after midnight. Water Temperature...44 degrees. UV Index............3 - Moderate. .TUESDAY... Waves...............Half foot to 1 foot. Sky/Weather.........Mostly sunny. Max Temperature.....Around 60. Winds...............South winds 5 to 10 mph. Water Temperature...44 degrees. UV Index............3 - Moderate. .TUESDAY NIGHT... Waves...............Half foot to 1 foot. Sky/Weather.........Partly cloudy. Min Temperature.....Mid 40s. Winds...............Southwest winds around 10 mph. .WEDNESDAY... Waves...............1.5 to 2 feet. Sky/Weather.........Sunny. Max Temperature.....Mid 50s. Winds...............Northwest winds around 20 mph decreasing to around 10 mph in the afternoon. .THURSDAY... Waves...............1 to 1.5 feet. Sky/Weather.........Partly sunny. Max Temperature.....Mid 50s. Winds...............South winds 10 to 15 mph. Sunrise: 07:31 AM CDT Sunset: 05:48 PM CDT $$