Lollapalooza 2026 in Grant Park has been marked by a weekend of heavy rain and muddy conditions, leading to multiple delays and shortened performances. Despite these challenges, fans braved the elements to enjoy headlining acts like Olivia Dean and Charli XCX. Day 3 concluded with weather-induced changes to the lineup, while enthusiastic festival-goers participated in unconventional activities such as mud wrestling. As the event approaches its final day, the atmosphere remains vibrant, with artists and attendees alike making the best of a wet weekend.