"Bitter cold could linger through the end of the month," the Weather Prediction Center said in an update on Monday.

Major cities across the Northeast and Midwest are facing temperatures 10-20 degrees below average, according to forecasters.

The North Pole is surrounded by a massive circular upper-air weather phenomenon in the Arctic called the polar vortex. It is ...

A significant portion of the U.S. is experiencing below-average temperatures due to a disrupted polar vortex, affecting over ...

Ontario may be one of the coldest places on the planet this Friday as an airmass is expected to be centred over the province, ...

Here’s the wind chill chart. Notice the four shadings, indicating how long it will take for frostbite. When we get to wind ...

Watch as a massive bowl of Arctic air is set to bring extreme, potentially record-breaking cold temperatures to parts of the ...

More snow is on the way for southern Ontario, with a widespread shot occurring on Wednesday. That will be followed by ...

Temperatures could fall below -20 F across certain parts of North Dakota and Minnesota.