The mail in registration form must be received by 15 days before the election (14 for Wyoming). And, for Utah, you can still register in person up to 15 days in advance. Or, in other words, next Tuesday!! So, fill out the form and mail it in TODAY!!! Follow this link for directions.
(as with all these posts, please PLEASE follow the links, even if you think you may have missed your state deadline, I could have miss-counted the days or there could be a loophole that will let you register after all!!!)