Chilly temperatures pushed President-elect Donald Trump's second inauguration indoors, a rare but not unprecedented move.

Dozens of US states will endure the lowest temperatures they have felt in years next week as a polar vortex brings ...

Sub-freezing temperatures and sunshine are forecast for President-elect Donald Trump’s inauguration Monday. The bitter cold ...

The “particularly dangerous situation” was in effect for an area that includes parts of Los Angeles and Ventura counties.

With well-below-average temperatures expected for Oklahoma and much of the country, here's what you need to know.

"If fire ignition occurs, conditions are favorable for very rapid fire spread and extreme fire behavior," the NWS warns.

Another blast of winter storms is closing schools, snarling flights and putting millions of residents on alert across parts ...