A little weather info. Almost anything from 35 to 85.
Only kidding a little. We have been at WDW 7 times in the last 9 years. Most days are upper 60's to low 70's. If the sun is out it can feel warm, without sun it is cool. Night temps can drop to 40's and it feels cool. We have had a few 80's days. It is not really swimming weather, unless you come from a real cold climate.
We come from NY so anything above 60 is great for us.
All the parks are packed, but it is a lot of fun, we are heading back this year 12/26 -1/2. See you there................