Kill, the first-year Golden Gophers coach, checked himself into the Mayo Clinic in Rochester, Minn., earlier this week after suffering more seizures during and after the Gophers' 37-24 loss to North Dakota State in Minneapolis.
He also had a seizure in Minnesota's 28-21 loss to New Mexico State on Sept. 10.
"He's doing fine," Bowman said.
The 50-year-old Kill was released from the hospital Wednesday after undergoing tests and returned to practice.
Kill, who says his condition is not life-threatening, hasn't missed a game because of the seizures, including the three times he experienced them while coaching at Southern Illinois. After the Gophers lost to New Mexico State, he spent five days in the hospital but returned to coach against Miami (Ohio) and North Dakota State.
Minnesota quarterback Marqueis Gray, who had been bothered by an ankle injury, is a game-time decision, according to Bowman.
Two hours before the game, Gray was spotted warming up and throwing passes inside Michigan Stadium.
Michael Rothstein covers University of Michigan sports for WolverineNation. He can be reached at email@example.com or on Twitter @mikerothstein. Information from The Associated Press was used in this report.