It’s really, really cold again — as the US shivers through at least the eighth blast of air from the Arctic this winter.

New Yorkers are already looking to winter and the question remains as to what kind of winter it will be - balmy or bitter?

It's already a lot to endure frigid winter conditions, but what happens when we get an unwelcome visit from an even colder spell of air like a polar vortex? "A polar vortex is simply that: a vortex ...

The polar vortex is stirring up, bringing the earliest hints that the seasons are changing. When will Wisconsin see its first ...