yes they do verry well
They do ok, if the weather isn't freezing.
As with any hair bearing animal, if your beagle is outside a protion of the day or all day, his system will conform to the colder weather by bulking up, as in a thickening of his coat. If your dog is inside all the time, they will not be used to the cold, and will suffer from the cold winter weather just as you would. If you plan to have your beagle out in the cold each day, you should provide a dog house that has a couple old blankets he can "nest" in to stay warm. If you live in an area that has below zero weather much of the winter, you should provide an insulated heated dog house.... My two beagles love thier "Dog Palace" when winter comes to visit :-D