The 103.7 frequency now occupied by WPKQ began in March 1952 as WMOU-FM, the FM sister station to WMOU (1230) in Berlin. The stations became WKCB and WKCQ in 1957, but returned to their original callsigns two years later. WMOU-FM separated from the simulcast of WMOU in 1972 and became WXLQ-FM, airing a rock and oldies format. This evolved to a mix of top 40 and oldies in 1975. The station reverted to the WMOU simulcast in 1977 (but retained the WXLQ call letters). A construction permit for a new 103.7, using WXLQ's former transmitter, was granted on August 8, 1983 to New England Broadcasting, Inc. (formed by Steve Powell, the son of previous WMOU owner Bob Powell) and revived the WMOU call letters (without the "-FM" suffix), with a license to cover issued on March 15, 1984. The station moved its transmitter to Mount Washington in 1990 and became WZPK and was known as “New England’s Superstation” with a Class C flamethrower signal that reached from Boston to Montreal. At one time a hot AC station (branded as "Peak FM"), 103.7 adopted its present callsign and format upon its sale to Fuller-Jeffrey in 1996. The city of license was changed to North Conway in 1999.
On July 6, 2015 WPKQ split from its simulcast with WOKQ 97.5 FM Dover, NH and rebranded as "103.7 The Peak".