We usually go around Thanksgiving, so a few weeks after you will be there. The weather is variable. Some years it is unusually warm (in the 90's) and, last year, it was unusually cold. Last year, it was in the 60's, even during the day, and we wore long sleeves, long pants and polarfleece all day. I think we would've worn mittens and hats at night if we had them (the stores were sold out). As a general rule, we usually wear capri/long pants and a t shirt during the day and a sweater or light jacket for nighttime. However, I usually pack a polarfleece for everyone, too. Since it's cold in MA in Nov, that's usually what we wear to the airport anyway. The pools and water parks are heated to 84 degrees all year round.