Myreon Jones led the team with 18 points in the last-second loss to the Cornhuskers.
Cael Sanderson earned his 200th career victory in Sunday's win.
The Nittany Lions lost 3-1 (27-29, 23-25, 25-23, 18-25) despite leading late in a few sets.
Penn State's offensive struggles were visible throughout the entirety of Saturday's game.
About 5.8% of tests administered in the last seven days returned positive results.
The Alumni Association and THON will provide 592 dancers with a special White Out shirt for the pep rally.