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

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need ...

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...

It's going to get cold in Tennessee. Meteorologists predict freezing temperatures for much of the state. Here's the latest.

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

The polar vortex is expected to reach the Utah-Idaho border sometime in the late afternoon and evening Friday as it continues ...

A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this ...

Some areas of the U.S. may see temperatures as low as -20 or -30 degrees early next week as arctic air from Siberia rolls in.

The Siberian airmass, which is being spun southward by a stretching polar vortex, will keep temps 15 to 30 degrees below ...

Temperatures are expected to plummet over the weekend, bringing life-threatening conditions to large stretches of the United ...

Starting this week into next, a lobe of the polar vortex will descend into the U.S. and bring with it brutally cold ...

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar ...