The roots of this station date back to March 17, 1980, when the construction permit was first applied for. The application was granted on May 23, 1983 to Cadiz Broadcasting, Inc., a company headed by Randall M. O'Grady. However, the station would not sign on the air under this company's ownership, largely due to its inability to acquire a suitable tower site from which to broadcast.
The station went on the air as WFNN on 1990-08-17. On 1990-10-08, the station changed its call sign to WWYS. On 1993-09-01 to the current WCDK,[4]
On August 2, 2017 Priority Communications of Ohio filed an application with the FCC to sell WEIR and WCDK to Ohio Midland Newsgroup, LLC of Bellaire, Ohio. The company is headed by Cody Barack and had no other broadcast interests. The sale was consummated on October 31, 2017 at a price of $700,000.