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

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

Deep penetration of cold temperatures and a coastal storm will bring bomb cyclone and polar vortex into your newsfeeds.

The west half of the country, including the Midwest, will start to warm up. But that won't be the case for the East Coast. Here's the forecast.

A chilling polar vortex is set to bring snow and ice to the South and East this week. We show where.

A severe winter storm that brought crippling freezing rain, sleet and snow to a large part of the U.S. in late January 2026 ...

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

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