Hi Nicole,
I will be there at the same time. I'm not expecting it to be that crowded. It is president's weekend, but it is early in the vacation season. I am expecting the weather to be chilly to moderate. I would recommend bringing down clothes that you can layer. Make sure to bring pants in addition to shorts and sweatshirts. You will want to have at least one sweater or sweatshirt for the cooler mornings and evenings.
If you haven't seen this yet, you need to check out the
Traveling with little ones WDW website. It gives suggested rides and even specialized maps for planning a great day with your pre-schooler. Beyond on the rides that the website suggests, I would also recommend, the Tomorrowland Transit Authority, the Haunted Mansion, and the Magic Carpets of Aladdin, all located in the Magic Kingdom. Over at Epcot, try my daughter's favorite ride since she was two, the Gran Fiesta Tour starring the Three Caballeros. It is a boat ride through Mexico featuring Donald Duck.
Two year olds are so much fun to bring to WDW. I hope you have a wonderful trip - Michelle