A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans. See maps of the arctic blast.

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

Most of the current cold snap, which swept in a few days ago, should have passed, but temperatures remain dangerously low. Experts anticipated that today (Tuesday) and last night would be the coldest of the spell,

Cold weather is nothing new for Michigan, but this week, temperatures are dropping into the single digits with wind chills reaching 25 below zero.  (Jan. 19, 2025) Fort Liberty will be part of an Army pilot program transferring management of dining facilities to contractors. Here's what that means.

Still, several Colorado school districts will start late on Tuesday as the state waits out the last of subzero temperatures. Denver, Jefferson County, Aurora, Littleton, St. Vrain Valley and Weld, among others, are all on a two-hour delay.

Are you ready for the coming arctic storm? Here’s the latest Colorado weather forecast and everything else you need to know ahead of extreme cold.

A disruption in the polar vortex is about to send an Arctic air mass from Siberia as far south as Florida. Yes, Siberia—and it’s as dramatic as it sounds. As many as 47 states will experience unseasonably cold temperatures. Some areas will be hit with dangerous wind chills as low as 40 below zero.