I just came home, and the temps were in the lower 60's. I asked how warm the water was, and they said 86 degrees, but they were having a hard time keeping the water warm. It didn't warm up any in the last few days, but they said, hopefully within the next couple of weeks, things should be back into the 70's.
They actually closed Typhoon Lagoon 2 days I was there, so make sure you ask if the water park is even open.