During my Aug 2003 trip I was in Disney for almost 2 weeks with a 3-day cruise in the middle and it only rained 2 of the days......... I was there for a week in Aug 1999 and it only rained for 30 minutes on one of the days.... In 2000, I was there for a week in Aug and it rained 2 of the days.... one of them was non-stop from 5:30 pm til Midnight so that messed up that night..... But as you can see I've had good luck so far.....
I am going this year for almost 2 weeks in August....