Will the dog be okay tonight?

huskies are originally bred for the cold, so you dont have to worry too much on that part they actually work really good during snowy weather, just make sure he has at least a blanket on the floor for him and you dont have to give him a bath they have flea spray at the pet stores you can put that on him for now and then when it warms up then you can give him a bath or take him to a salon and have them do it. good luck hun and everything your doing for the poor dog is fine