We were there last week and it forecast rain every single day with high probability. And it did rain every day - other than the night that Dorian hit the coast, it rained about 3 times per day very hard for about 5-10 minutes but it could be doing that in World Showcase in Epcot whereas Future World got no rain. One day when we were at our resort, I could hear them telling people to get out of the pool because of potential lightning but by the time most people got out, the rain had stopped so they let everyone go back in. I'm used to small localized rain storms where I live, but this was way out of my experience with just how "local" these little storms could be and how short they often were.