Last year we saw B&B in the rain! The sides are open but I don't think anyone was getting wet - unless you go in a hurricane, I think you'll be fine! We love the show - my Dd and I saw it 6 times last year. Sadly, she's at that age where it's one of the only things she really likes at MGM - oops - Hollywood Studios! Not that I mind... I'd rather sing show tunes than ride Rockin' Rollercoaster any day!