Hi, Stacie!
Welcome to Walt Disney World! You are in for such a magical vacation.
September is still very warm in Florida with temperatures well into the 80's so it will be plenty warm to go for a dip in the pool or even if you want to splash on over to one of amazing water parks! The sun is very strong so bring hats, sunglasses, and plenty of sunscreen.
To see the daily events, go to
www.disneyworld.com and click on the PARKS tab near the top of the page. Select a park, then click on CALENDAR. Select the month of September, then click on your first travel date on the calendar. A list of that days events with times will pop-up. For more details on an event, click on anything that is in the color BLUE for more information. You can then click "next day" to see schedules for your vacation. You will have to go through this for each park to see what Mickey Mouse has planned during your magical vacation!
Once you arrive at a park, you can pick up a Times Guide that will have the park's schedule for that day. Pick one up at the main gate and keep it with you so you will know hours, schedules, even character meet and greet times!
I am so excited for you and your family! Keep in touch and let us know if you have any other questions as you are planning for your trip.