A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

Temperatures will reach the mid-40s throughout the weekend, with a forecast high of 59 degrees on Monday in Baltimore.

There’s a chance of snow this weekend before temperatures are expected to drop to the single digits next week due to a blast ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...

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

A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into ...

The National Weather Service calls for more above-freezing temperatures Saturday, expected to be mostly sunny with a high ...

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

Anytime we get an Arctic air blast down this far south, this is an artifact of the polar vortex rearing its ugly head,” said ...

Like much of the U.S., Wisconsinites woke up Tuesday morning to bitter cold conditions. Many schools and colleges throughout the Milwaukee area closed as the area braced for the dangerous freezing ...