Its signal is transmitted from the AFLAC Tower north of Rowley, Iowa.

KFMW came on the air in November 1968 as KWWL-FM and was originally owned by Black Hawk Broadcasting Company of Waterloo.

[1] It remained a CHR format until approximately 1992, when it was given its current name, "Rock 108".

The station was sold by Black Hawk Broadcasting to Forward Broadcasting in the early 1980s, sold to Park Broadcasting in the late 1980s, to Bahakel Communications based in Charlotte, North Carolina, in 1996, to Woodward Communications of Dubuque, Iowa, in 2012, and to NRG Radio, LLC in 2014.

KFMW is the #1-ranked rock station in eastern Iowa, serving the Waterloo/Cedar Falls metropolitan area as well as new owner NRG Radio's home base of Cedar Rapids.