WCLR was a radio station that broadcast on 88.3 FM in Arlington Heights, Illinois. It was owned by the Educational Media Foundation and broadcast its Air1 Contemporary Christian network. Throughout its existence, WCLR shared the 88.3 frequency with Palatine-based WHCM at William Rainey Harper College, broadcasting on weekends and when the college was not in session. Pursuant to an agreement with the college, the WCLR license was canceled in 2017 to allow WHCM to broadcast full-time on 88.3.