Grant Park has a summer series of outdoor dance events, I believe, a couple different nights a week. You can google Chicago Dance and probably spot some stuff related to that. Of course, Willowbrook Ballroom is always good on Sunday afternoons. I'm out in the suburbs, and there are not many spots out this way. We spot a few open ballroom nights at various dance studios, but otherwise, it's a swing night here or there ... that sort of thing. Working two jobs lately anyway, so not a lot of time to hit the dance floor. But good luck. You'll find something you'll enjoy in the city, for sure.