Milwaukee Summerfest 2025. With another edition of unforgettable performances across three balmy weekends in milwaukee, wisconsin, it's expected that summerfest will be setting up camp once again next. Milwaukee — summerfest 2025 will open june 19, 2025.
With hundreds of acts playing on 12 stages, you’ll find alternative, rock, country, r&b, pop, reggae, and more, from national headliners to indie bands. The festival drew 555,925 attendees in 2025, down from 624,407 in 2023.