Williams will make her third head coaching stop after previous stints at Georgetown and Auburn.
The match is set for 7 p.m. on Wednesday, April 9, at Rec Hall.
Jekot became the first Lady Lion transfer to commit to a new program.
The Nittany Lions started off conference play with two straight losses.
Three former players made the NCAA Tournament with their new programs.
The Nittany Lions will now host a doubleheader Friday, with the third game on either Saturday or Sunday.