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

A rare weather phenomenon that hasn't occurred since 1968 is expected to plunge temperatures across parts of the United States.

A harsh drop in temperatures is being delivered to the eastern two thirds of the U.S. thanks to a polar vortex dipping down from the Arctic.

"The central U.S. could see cooler than normal temperatures Thanksgiving week, while areas of the west and Florida could see ...

A highly unusual disruption of the polar vortex is taking shape in the upper atmosphere this November, raising the odds of a ...

Meteorologists are predicting cold weather across the US after Thanksgiving. Here's what to expect in the Wilmington area.

A harsh drop in temperatures is being delivered to the eastern two thirds of the country thanks to a polar vortex dipping down from the Arctic. Record cold high temperatures on Monday and Tuesday are ...

Don't put away those winter coats just yet. An April cold snap is forecast for much of the eastern half of the U.S. early next week, forecasters said, with freezes likely across portions of the ...

Bitingly cold Arctic air keeps pummeling the U.S. with ruthless cold snaps—despite warming winters nationwide. A study explains why: the solution lies far above your head, in the upper atmosphere ...

The polar vortex is sending a mass of frigid arctic air south into the central and eastern United States early this week, blanketing about two-thirds of the country with "sharply colder" weather, the ...

The odds of extreme cold this winter in the US, Asia and parts of Europe are climbing, threatening to boost energy bills for consumers already grappling with high costs and economic uncertainty. With ...