How "bad" is it in late June?

[lorivegas]

Crowd wise, heat wise? What time of day should we even ATTEMPT to go to parks? Is there any more early entry days? (Sorry for all the ?'s):confused:

[WALT PENN]

MY FAMILY WENT IN LATE JUNE THRU JULY 4 IN 2000.THE CROWDS
WERE BIG BUT I FOUND ALL PARKS TO BE MANAGABLE EXCEPT MAYBE THE WATER PARKS IF YOU DON'T GET THERE EARLY.IT ALSO IS EARLY ENOUGH TO BEAT THE TOUR GROUPS THAT ARRIVE IN JULY.