The talented 21-year-old, who can operate out wide or as a striker, arrives from Barnsley who he joined from Leeds United on a permanent basis in the summer.
Having progressed through the youth system at Leeds before making his professional debut with the Elland Road outfit, Wilks had loan spells at Accrington Stanley and Grimsby Town in 2017/18 before enjoying his breakthrough season in 2018/19 whilst playing under Grant McCann on loan at Doncaster Rovers.
His tally of 16 goals and 12 assists in 55 appearances saw him named as Rovers’ Player of the Season last term as the Keepmoat Stadium outfit reached the League One play-offs, where they lost on penalties to eventual winners Charlton Athletic at the semi-final stage.
Speaking after completing his temporary switch to the KCOM Stadium, Wilks said: “I’m delighted to be here and I can’t wait to get started with Hull City.
“I played under Grant McCann at Doncaster Rovers last season and there are a few other familiar faces here, too, so I’ve already been made to feel very welcome.
“I know this club is aiming for the play-off places and that is the challenge that we face for the remainder of the season. It’s a challenge that I’m really looking forward to.”
Wilks has been allocated squad number 43.