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

Colder air is returning to the central and eastern U.S. as the polar vortex becomes more active, bringing fluctuating ...

Three separate rounds of Arctic air have already swept across the central and eastern United States through mid-December, ...

The Polar vortex is causing temperatures to plummet dangerously across the Philadelphia region, and frostbite could become a ...

A polar vortex is sending Arctic air deep into the United States this week, bringing record-low temperatures to the Midwest and Northeast. From Chicago to New York, forecasters warn of subzero ...

As winter settles in, Europe is preparing for a significant weather shift, characterized by deep snow and severe cold that is expected to last through mid-January 2026. This article explores the ...

The wall that keeps cold air contained in the Arctic is called the polar vortex. There's been a "displacement" in the polar vortex, which allows Arctic air to escape to the south. An "arctic frontal ...

The polar vortex has broken, and severe temperatures are set to dominate most of the country in the coming days. Temperatures in the 10s are forecast for much of the Northeast, and subzero ...

CLEVELAND — The temperature outside was so cold that your fingers, toes, nose and cheeks felt like they were burning. A harsh Arctic cold wave brought record-breaking temperatures to the United States ...

Frigid temperatures are expected to impact much of the central and eastern United States in the coming weeks. The first of three polar vortex systems is expected this month, according to AccuWeather.