I went on Saturday and it was boiling all day! It did not start cooling down until at least 6PM. I don't know exact temps, but I do know that here in LA it was about 100 all day today. It's probably going to be slightly cooler but not by that much. Good luck!
I don't live that far and it was 108 today. It's not supposed to be as hot tomorrow but it's still going to be pretty darn hot all the rest of this week.
It was really hot, but when I'm on vacation, I'd much rather have it be super hot than super cold. DS and I took advantage of Curious George on Friday and got soaked and cooled off.