A piece of the polar vortex is spilling into the Midwest, creating extreme cold for the Chicago area and northwest Indiana ...

Patrick Mahomes leads Chiefs to AFC title game after daughter's birth as Caitlin Clark, Taylor Swift cheer ...

Another blast of winter weather is expected in parts of the U.S. in the coming days, including bone-chilling wind in the ...

A disruption in the polar vortex is about to send an Arctic air mass from Siberia as far south as Florida. Yes, Siberia—and ...

A major cold blast is in store for millions of Americans as a lobe of a polar vortex will bring brutally cold temperatures to ...

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

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

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

People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, ...

The vast majority of Americans are about to get an extended taste of frigid Siberian weather. Another polar vortex disruption ...

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.

A major winter blast of snow, ice, high winds and plunging temperatures are stirring up dangerous conditions across the U.S.