We've had our boat on Lake Michigan since 2005. Sturgeon Bay 2005-2010.
Michigan side since 2011. You might consider a side trip north on Green Bay (Door County) before leaving Sturgeon Bay. Fish Creek is nice. Washington Island interesting, Fayette, Michigan simply stunning. Never went south of Sturgeon Bay on the Lake...always headed across to Michigan and then north. But from that experience, we learned that the Michigan side tends to encounter nastier wave conditions because of the prevailing westerlies and the long fetch. Fog can occasionally be an issue in the Spring, but easy enough to plan for. Radar is a nice security blanket. I use
www.passageweather.com for wind and wave info. Seems to track fairly well with NOAA within 24-48 hours out.