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

Forecasts continue to point toward the Arctic polar vortex bringing chilling winds across swathes of the U.S. in the new year. Why It Matters The polar vortex may lead to severe weather conditions, ...

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by treacherous conditions.

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