a great time. I pack for indoor weather and then pack a nice jacket, sweater or wool pashmina or something. Unless you are going to be outside for long periods of time, you are not going to need warmer clothes at 50°, just another layer. At 50°, we generally don't bother with another layer if we are just going to and from the car, and you probably didn't either when you lived up north. Last night I took the dog out at 53° barefoot and in short sleeves, and we stayed out there for a good while. Throw a nice outer layer in and relax. You've got this!