We know it's SUPER short notice, but today is a FREE day at the Museum of Science and Industry. There's plenty to check out there - though special exhibits like The World's Fair and Harry Potter require additional tickets - and the Farmer's Market (open until 2 p.m.)will be held indoors due to the threat of rain. Today's free admission is in honor of the museum's 76th anniversary. It opens for the day in about 10 minutes (and stays open til 5:30 p.m.) so get a move on and get down there! It's a great way to keep some kids occupied on a day with sketchy weather. more ›

The Shedd Aquarium is free through Friday, and Chicagoist can’t think of a more mesmerizing place to take your kids. more ›