The weather is generally great...still warm for swimming and such, but not "Florida in July" hot. Like the PP said, Epcot F&W may run crowded...but that tends to be worse on the weekends (beginning on Friday night, as many locals enjoy the event)...if you plan an Epcot day during the week, you will likely be fine. We had a great trip last October (10/5-10/12), with short waits, and lots of fun! Columbus Day weekend tends to see an increase in crowds...try to avoid it if you can.