Mendota Corn Fest 2025 Dates. 10, and concludes sunday, aug. Food and merchandise booths open.
The mendota area chamber of commerce is preparing for the 75th annual sweet corn festival to be held in mendota, illinois on august 11, 12, 13, & 14th. The mendota sweet corn festival is one of the largest festivals in northern illinois, attracting 60,000 visitors annually.