We go every June- usually after the last day of school. This year is June 12-21. Last year it rained every single day of our trip in the afternoon. We had a major storm come through one day while we were in the pool at BLT. They pulled everyone out and we just sat at the bar area and waited for it to pass...it never did! That was the only time we got rained out. Every other day was just a short 30 episode and we would throw on our ponchos and go with it.
Now, I don't agree with the people who said it never gets cold. I will never forget last year, Friday, June 13th, 2:47pm. We were in MK and it was hot as heck. Went on Splash Mountain to cool off...ride ended up breaking down at the bottom of the big drop. We were going around the corner (for the last half of the story) and the ride just stopped. The sky then opened up and it started pouring! We were already wet from the drop and we ended up sitting there for a good 30 mins with the rain just beating on us. We were about ready to cry, but we had to laugh...nothing else to do! By the time the ride started back up we were soooo cold, literally shaking from the chill. And then we had to finish the rest of the ride in the coldness! We got off and were soaking wet, every inch of us. We had to make out way back to BLT to change our clothes and the whole walk back was pure torture. So yes, after that rain shower it was cold!