A harsh drop in temperatures is being delivered to the eastern two thirds of the country thanks to a polar vortex dipping ...

A sudden, dramatic shift in temperatures high in the atmosphere will dance with the La Niña weather pattern. There won't be a clear winner.

More than 84 million are under winter weather bulletins with several states expected to see lows 10 to 25 degrees below ...

The U.S. is set to feel the impacts of an Arctic polar vortex next week, meteorologists have warned, with sub-zero ...

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 ...

The polar vortex is stirring up, bringing the earliest hints that the weather is changing as autumn has officially arrived. In the short term, this means gradual cool-downs and a more active storm ...

The polar vortex is a large region of low pressure and cold air that has always existed around Earth's poles. While the polar vortex is weakening for the season, it does not directly cause winter ...

Indiana can expect dry temperatures around the state at the beginning of October. Although fall kicked off earlier this week, it'll be a little while before we are affected by a polar vortex. Hoosiers ...