Hello, Nichol!
As with many other parts of the country, weather in the Orlando area is variable. If the weather stays the same as what is forecasted right now, I would plan to pack layers. Of course, it depends on what feels warm to you, right? Where I come from, those temps call for shorts and short sleeves. Likely, everyone does not feel the same way. I would recommend choosing short sleeves, pants, shorts and sweatshirts. Remember to pack for any
Disney Dining reservation where a dress code may be enforced. You may also want to pack disposable rain ponchos in advance of your trip. They are also available throughout Walt Disney World property.
It won't be long now, Nichol! Have fun!
I wish you a truly magical vacation.
-Jacqui