Houston has been experiencing below-average temperatures as a polar vortex ushers in cooler conditions across the state.

In Indiana, around zero degrees was likely, the map showed, with temperatures of around three degrees possible in Northern ...

A rare winter storm is set to blanket the southern US in snow and ice as the entire East sees temperatures plunge to their lowest point this winter, bringing 'life-threatening' conditions.

Around 40 million people in the U.S. are under a winter storm warning from an unusual blast of severe winter weather.

Residents across the country from the Northern Plains to the tip of Maine are bracing for dangerously low temperatures as tens of millions of residents along the East Coast contend ...

A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans.

The polar vortex, a swirling mass of cold air located over the polar regions, is responsible for the impending cold. It will bring extreme cold as far as the Deep South as we head into the start ...