A rare atmospheric collision is poised to deliver unprecedented Arctic air across North America in December 2025. On November ...

The Upper Midwest and Northern Plains have been hit by Canada's freezing temperatures. On Thursday, Dec. 4, wind chills ...

Illinois is heading into a bitter post-Thanksgiving weekend, with a major winter storm bringing plunging temperatures and a ...

Arctic air is taking cold to another level this week and the US could be facing bouts of it well into December thanks to the polar vortex.

For instance, cities like Springfield, Illinois, recorded temperatures as low as zero degrees, while Plattsburgh, New York, experienced minus four degrees. This drastic drop in temperature is not just ...

CHICAGO (WLS) -- Polar Vortex? Not quite, but Chicago weather is on pace for a cool down next week. "The jet stream will be buckling unusually far south for mid-July, allowing a cross polar flow ...

A polar vortex from Canada will descend into the United States this weekend, creating frigid conditions in the midwest and, later, the east coast. Temperatures are expected to hover in the single ...

Another arctic blast is on the move toward the U.S., bringing the potential for bitter cold and heavy snow accumulations to Ohio.

Some forecasters say a complex dance involving the polar vortex could send some of Earth's most extreme cold toward the United States.

Another brutally cold weekend is on the way as a piece of the Polar vortex dips out of the Arctic Circle, sending frigid air ...