With over 170 million Americans facing below-average temperatures, even colder air may be on the horizon thanks to the displacement of the polar vortex that will lock in the feel of winter and park ...

When Punxsutawney Phil popped up and saw his shadow on Feb. 2, a collective groan rippled across the Eastern United States, where freezing temperatures, ice and snow have cast a big chill for days.

When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation that usually spins quietly above the pole can suddenly send lobes of Arctic ...

Fall weather in Massachusetts may be in for a cold snap in the next few weeks. The National Weather Service's Climate Prediction Center is forecasting temperature drops throughout the country in the ...