The 21 year old has made 11 appearances for Leeds this season, scoring one goal, but has been told he can go out on loan by new boss Gary McAllisterWeston told Scunthorpe's official website: "I just want to stay up, play as much as I can and help the team, obviously it is a step-up from League One, so we will see how it goes".
The former Swindon man is also the youngest player to ever play in an FA Cup final where he appeared for Millwall against Manchester United.
It is United's first loan signing of the day.