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

Marylanders are bracing for the upcoming polar vortex, expected to bring temperatures into the single digits early this week.

President-elect Donald Trump's second inauguration will mark the coldest presidential ceremony in more than 40 years.

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

A polar vortex will plunge Waterloo region, Guelph and Wellington County into a deep freeze until Wednesday, Environment ...

A rare winter storm is getting set to slam the Gulf Coast and South, with cities from Texas to Florida under Winter Storm Warnings.

Several businesses and organizations have announced closings and cancellations ahead of the extremely cold temperatures.

Still, several Colorado school districts will start late on Tuesday as the state waits out the last of subzero temperatures.

The region enacts cold weather measures when temperatures dip to -15 C or it feels like -20 C with the wind chill.

An intense blast of arctic air blanketed the Mid-Atlantic and the Northeast with frigid temperatures, and a rare winter storm ...

A polar vortex will plunge the GTA into a deep freeze until Wednesday, Environment Canada says, with forecast windchill ...