Central Florida in November is tough to predict. It might be low-90s all month, or random cold snaps. Especially in Orlando. Although typically, if you find an average of mid-80s temperatures warm enough to swim and get in the water, then your odds of being okay to enjoy the park are pretty good.
I live in the Tampa Bay region (~ 70-100 miles from WDW), so it tends to remain pretty balmy through November here.