A long-awaited blast of cold air, courtesy of the polar vortex, will overtake much of the US, but the forecast says the low ...

Another brutally cold weekend is on the way as a piece of the Polar vortex dips out of the Arctic Circle, sending frigid air ...

"Arctic air will bring near record cold temperatures and dangerous wind chills," the National Weather Service said.

The northern U.S. is bracing for bone-chilling cold as a weakened polar vortex pushes Arctic air south. How cold will ...

The first of three rounds of bitter air has arrived, threatening record lows in cities from the Midwest to the Northeast.

Western New York has been locked into a prolonged period of very cold weather, and the data seems to confirm this. Over the past two weeks, every single day has come in below average for this point in ...

Cold temperatures are set to continue into the weekend, but New England will feel another icy blast of Arctic air Sunday ...

A polar vortex is a mass of cold air that normally stays contained over the Arctic. The cold blast is predicted to be ...

A fresh shot of Arctic air could bring the coldest air of the season for many this week, according to AccuWeather ...

A fresh surge of Arctic air from the Polar Vortex is poised to plunge into the central and northeastern United States this ...

A polar vcortex and an arctic blast can each bring frigid air to the greater Philadelphia region, but there are differences between the two to know.

This coming weekend, the central and eastern United States will receive a blast of Arctic air, which will also affect ...