WASHINGTON — President-elect Donald Trump's inauguration ceremony is moving indoors to the Capitol rotunda because of a frigid weather forecast in the nation's capital Monday, the president-elect announced on social media Friday.

Arctic air is set to bring bone-chilling temperatures across much of the U.S. in the coming days, making for a far colder-than-average Inauguration Day. How cold will it get?

President-elect Donald Trump said he is moving his inauguration indoors Monday due to the freezing weather expected in Washington, D.C. Trump said he'll be sworn in and deliver his inauguration address inside the Capitol Rotunda.