The PrairieFest Parade is a highlight of the annual PrairieFest celebration in Oswego, Illinois. On June 21, 2026, the parade will feature a vibrant display of floats, marching bands, and community spirit. Please note the new start time of 12:00 PM. This event is a wonderful way to celebrate the start of summer with family and friends. Come enjoy the festivities and be part of this exciting community tradition in the heart of Oswego.