The station began broadcasting in March 1963, and held the call sign WBEL-FM.[1][2] It was a sister station to WBEL 1380, and simulcast its programming.[1] The station was originally licensed to South Beloit, Illinois.[1][2] In 1967, the station's call sign was changed to WRWC.[2] In 1971, the station's city of license was changed to Rockton, Illinois.[2] In the 1970s, the station aired a format consisting of beautiful music and big band music.[5][6] The station continued airing a beautiful music format into the 1980s.[7]
By 1984, the station's format had been changed to adult contemporary.[8] In the 1990s, the station aired a soft AC format, and was branded "Lite 103".[9][10][11] The station aired Delilah evenings.[12] In April 2000, the station's call sign was changed to WGFB, and the station's format was shifted to mainstream AC.[3][13] The station was branded "B 103", with the slogan "Today's Lite Rock".[13][14] The station continued to air Delilah evenings.[13][15] By 2006, Delilah was replaced in the evenings with John Tesh.[16]
On December 26, 2022, after the conclusion of their annual wall to wall Christmas music, WGFB shifted their format to hot AC, dropping their AC format after 22 years.[17]