I think the McD’s coffee was somewhere in the neighborhood of 190 degrees, which is insane when you think about it. You can get 2nd and 3rd degree burns on in just over a second at even 150 degrees (http://www.burnfoundation.org/programs/resource.cfm?c=1&a=3).
The link here recommends between 195 and 205 degrees. http://www.ncausa.org/About-Coffee/How-to-Brew-Coffee
My Keurig is set to brew at 195.