Have you checked out the website Macaroni Kid? It's a great resource for local things to do with your kids.
Macaroni Kid itself is a national program, there are local affiliates who keep weekly newsletter subscribers up to snuff on festivals, story times, art workshops and all matters of fun, 52 weeks a year. It's been a valuable resource for our family in keeping busy, season by season. Subscribe today or maybe even consider becoming a Publisher Mom in your area, if you don't have one yet.