The station signed on the air on September 21, 1968 as KJIB with a beautiful music format. KJIB transitioned towards country in the early 1980s. On August 19, 1985, KJIB changed their call letters to the current KWJJ-FM. On January 6, 2004, KWJJ-FM rebranded as "99.5 The Wolf".
KWJJ uses the "Reelworld One Country" service after dropping their "IQ Beats" custom package in 2009. Sweepers are done by Emily Mcintosh and Jack Murphy. This is Mcintosh's 10th country client and her fifth "Wolf" station to do sweepers and custom liners.