Extreme cold could expose residents of several states to conditions like hypothermia and frostbite over the weekend.

The coldest air of the season will descend across the U.S. this weekend and early next week, bringing subzero wind chills ...

A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans.

The 10 Weather Impact team issued Alert Days for next week because of the polar vortex being responsible for the cold ...