The culprit behind the country’s somewhat wacky weather, or at least part of it, is the (aforementioned) probable sudden ...

A rare stratospheric event is forecast to unleash bone-chilling air from a weakening vortex across the US and New England, ...

A combination of weather conditions may make it colder than usual across parts of the Central and Northern U.S. next week.

For folks who long for cold, the weeks after Thanksgiving might just be a tease for some intense Arctic cold that could ...

It's been a warm autumn, so far. But the polar vortex is forecast to change unusually early, and that could impact your ...

The polar vortex is weakening, which means New England is in for a colder than usual December, with episodic cold snaps.

This weather event may not be constant, but there will be cold waves over multiple days with single-day warmups mixed in.

Over the next 10 days, scientists say, changes in the stratosphere will upend weather patterns and set the stage for a cold, snowy December across parts of the Northern Hemisphere.

It has been a warm autumn, so far. But the polar vortex is forecast to change unusually early, and that could impact your ...

But across the country, AccuWeather meteorologists are predicting major travel disruptions as a storm system is set to batter much of the western United States and Midwest with heavy snow and cold ...

A polar vortex — a large area of low pressure — is heading south from the Arctic, bringing with it cold weather across many ...

Another Arctic blast is on the move toward the U.S., bringing the potential for bitter cold and heavy snow accumulations to ...