In general healthy cats need only to stay dry and get out of the wind to cope with colder temperatures. However older cats, sick or thin cats, and kittens all need more warmth to stay well. Facebook and Pinterest sites often have great ideas on building simple shelters for cats, if you don’t have access to a shed, garage, or covered porch. Some of the simplest designs include using plastic totes with lids and inexpensive Styrofoam coolers to line the inside. An entrance/exit hole(s) are cut in the sides along with a few smaller holes for ventilation. Lastly bedding material such as straw, shavings, blankets, old towels, or even a heated pet bed is added. Remember cats don’t always share well, so having more than one kitty condo is great.