Summer Jam 2025 Eau Claire Lineup. Get ready to experience the ultimate summer soundtrack at summer jam, eau claire's newest music festival! Another new summer festival is coming to the region.

It’s the music you crank up with the windows down, out on the lake or at a backyard bbq. Eau claire — summer jam revealed more of their inaugural lineup on tuesday including wang chung, collective soul, mkto, gavin degraw, live and the saturday night.