William J. "Bill" Karins (born April 14, 1974) is an American meteorologist, working for NBC News. He reports weekdays for NBC's Early Today, MSNBC's First Look, Way Too Early, Morning Joe, The Rundown with José Diaz-Balart and CNBC. Prior to being named NBC Meteorologist Karins was one of the original meteorologists for the now shuttered NBC Weather Plus. From 2009 to 2012, Karins had been the meteorologist on Weekend Today on Saturdays.