The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...

A series of disturbances in the atmosphere is sending the polar vortex south (again) next week with a burst of even colder ...

Temperatures could tumble to around 5-10 degrees below average early next week and then as much as 10-20 degrees below ...

Most of the U.S. will enjoy milder temperatures on Thursday, but the warmup will be brief as a polar vortex will send ...

Donald Trump announced the change to his plans on TruthSocial, pointing to a wind chill forecast by the National Weather ...