I wouldn't say norman is good on any weekend, much less a holiday weekend. I was out on memorial day and it was like an ocean. During the week its pretty nice and you can get good butter 7am-11am on the fingers during the weekend, but after that it's pretty worthless to try to board.
Our house up there is going to be a rental eventually, but I don't see it happening before the 4th. Check out
http://lakenormanvacations.com, we used them for rentals the last few years. Better hurry for the weekend of the 4th though, the places book fast.