antmaril,
How exciting, my DH and I took my DD right before Labor Day 2 years ago. She was 2 1/2 yo and it was her FIRST trip to the world!!!
We left NYC after work on a Thurs. night plane, we spent Fri, Sat, Sun, at the MK and MGM only.
Didn't want to overwelhm her on her first trip. 2 days at MK and one at MGM.
WE HAD A BLAST!!!! My DH and I will never forget it!!!
To answer your question, it was HOT!!! But that did not matter to any of us, we were just so HAPPY to be there!!
It was NOT as crowded as I expected, many people are getting ready or are either already back to school.
All I can advise is get a charachter breakfast, go to the park by 9:30 or 10:00, enjoy Fanatasyland first (before it gets too crowded), and try to do some of toontown (most of it is air conditioned) the character meet and greets are inside and so are the lines, it's a GREAT PLACE for a 2 yr old. because they get to see MANY characters (that's all they really care about) and it's a great way to beat the heat.
I would then GO back to the hotel for a NAP and then come back for the parades and fireworks and dinner at the CP is Fabulous. If you have time go back to toontown, or save it for another day if you have that option. Don't miss Cindarella's surprise Celebration.
The best advice is go to a park in the morning, enjoy it, go back to the room for a nap and or swim or both if you can (middle of day when it is really hot), then go back to the park and finish.
All I can say is since that trip we have truly become DISNEY FREAKS and we have been back 3 times in the past 2 yrs!!!
Our next trip will be in Oct with our now 4 1/2 yo DD and our 8 month old DD as well.
WE LOVED IT at that time and would highly recommend it.
Just take it slow.....