I have looked at 10 day out weather forecasts for both shuttle launches and Disney vacations and I know from years of experience that long range forecasts are guesses as much as extending a trend into the future.
I’ve seen 80% rain chance for a given day slowly change to 10% rain chance on a day that turns out to be cloudless.
This time of year, rain might not go away quickly because it is part of a cold front that makes it all the way down and then springs back up to the north, or the rainy weather could just hand on for a day.
You should be ready for anything, especially the last couple of last gasp cold fronts with enough in back of them to make it into Florida.
Also, I looked at the 10 day from Weather Channel and the worst rain chance you have is only 40% and next Thursday, Friday, and Sunday are only 30%, which is pretty normal.