However, the holiday itself doesn't roll around until Thursday, and there are still two events you can attend all the way through the first days of November.
Halloween Horror Nights at Universal Studios Florida runs through November 2 this year. The last three days are October 31 and November 1 and 2. It's somewhat unusual for the event to run beyond the holiday, but it will still be the full blown version, with haunted houses, scareactors on the streets, and the Bill & Ted and Rocky Horror shows.
It's possible that Halloween night may be less crowded at Halloween Horror Nights, at least early in the evening, if people wait until the weekend to attend. However, that's hard to predict due to the popularity of The Walking Dead and the other horror franchises at the event this year. Either way, it's a final chance to get your scare on.
If you prefer less terror and more treats, you can catch the last Mickey's Not So Scary Halloween Party at the Magic Kingdom on November 1. There are no haunted houses, just a parade, fireworks, and lots of candy and other goodies at the trick or treat stations. Kids and adults are both welcome to dress up in costume, so don your best and head out for a last hurrah.
Both of these events are after hours and require special admission tickets.