We've gone in early June, and our experience was that it was hot, but not as bad as August's kind of hot. But--rain! Deluge! Bring your ark kind of rain, but not for long (if I recall correctly). We solved that issue by taking the usual rain gear and wearing sandals that can get wet (we have Chaco's). Of course, the weather is going to do what it does; while, in my memory, the rains didn't last long for the most part, we had one Mother's day where it rained nearly all day. But counting on rainy, humid, and temps in the high 80's to mid 90's would be a safe bet.