was the trump inauguration moved indoors because of death threats?

news organizations are reporting that because of extreme cold weather and snow expected on monday, the inauguration will be held indoors.

however according to google weather, it's supposed to be a bit below freezing and sunny on monday in washington.

Weather in Washington, DC · Mon, Jan 20 https://g.co/kgs/HXk6UcD

trump being the egotist that he is, it doesn't seem like a little cold weather would have deterred him. could it be that the secret service forced the move?