We've been in October the last 8 years. The weather is usually good (although we did have rain several days last year). I don't think we've had to wear jeans or sweatshirts, except maybe at night. If you want to go to a water park, check the weather when you get there and plan that day early because you might only have one or two days that really hot enough for the water park. Before last year, we never had trouble walking into just about any restaurant. Last year though, after they started offering the dining package, we were only able to get one sit-down meal. So, be sure to make reservations ahead of time if you want any sit-down meals.