Every Sunday, June through October, downtown Oswego opens up for the Oswego Country Market. This fresh air market is the best place to shop each week for locally grown produce, fresh farm eggs, raw honey, delicious Wisconsin cheese, and fresh baked bread. While spending time downtown, stop to visit the many stores open during the Oswego Country Market.
Open every Sunday, June 28-October 18 from 9:00am-1:00pm.
More information here.