In Illinois, you’ll find a fireworks show to check out anywhere between July 1st and July 4th. I say Go Big and see a show every night. Boom!. Much like when the Halloween holiday falls on a weeknight, communities are split on when the best time would be to hold a 4th of July celebration. Some don’t like the idea of moving celebrations to a more convenient day than the actual date of the holiday, while others would like to not feel half-dead the next day at work.