More than 400 flights were delayed or canceled at Denver International Airport on Monday as a polar vortex continued to ...

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

MINNEAPOLIS, Minnesota — Our entire region is under an Extreme Cold Weather Warning until 12 p.m. Tuesday; wind chills could fall as low as -45 degrees. This Arctic blast is thanks to a polar vortex.

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

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

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

A historic winter storm is poised to produce potentially record-breaking snows from coastal Texas to northern Florida late ...

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

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

The National Weather Service issued a Cold Weather Advisory for all of Michigan from Monday morning through Wednesday morning, when arctic temperatures are likely. The advisory expires at noon ...

Mid-Michigan schools canceled classes on Tuesday to avoid sending students into frigid weather during the morning commute.