Yes, put them in a fully enclosed shelter, if nothing else. Get some tarps to cover that dog house, and put some boards under to elevate it, so the rain won't get in there. .
If you need a dog house, straw, tarps, or anything else, ask for help! Most people are glad to offer whatever they have to help out. Some animal rescues may have available suppllies as well. Just spend a few minutes to ASK.
Benson, North Carolina