Wayne depends on the dog. My Siberian is outside right now laughing at dobermann who gave him grief all summer long. Dobies have a very thin coat. Where Siberians have three! Some dogs like Lurkina.n.Learnin spoke of, dachshunds? What fur?
My peke-pom-sheltie has little issue with the cold until it gets 10 or so degrees below freezing, but he is 17 years old, so I bring him right in as soon as he asks to come in.
The teacup chihuahua though...
Then there’s the stupid cat that goes out ONLY in foul weather. Go figure.