A displacement of the Polar Vortex will usher in days of Arctic cold through the end of January. The core of the Polar Vortex ...

A forecast map reveals which states can expect to see “persistent cold” in the weeks ahead, after experts said the polar ...

A dramatic blast of cold air may be coming for the United States in late January, courtesy of the polar vortex. Here's what ...

A bitter blast of cold air settles over the D.C. region Tuesday as all eyes turn to a potential weekend winter storm that ...

Major cities across the Northeast and Midwest are facing temperatures 10-20 degrees below average, according to forecasters.

Winter has settled in for the long haul, and the next few days only reinforce that feeling. Tonight brings mostly cloudy ...

Here’s the wind chill chart. Notice the four shadings, indicating how long it will take for frostbite. When we get to wind ...

Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march ...

A significant portion of the U.S. is experiencing below-average temperatures due to a disrupted polar vortex, affecting over ...