Bishop Weisenburger attended Conception Seminary College in MO, graduating in 1983. He attended the American College Seminary at the Catholic University of Louvain in Leuven, Belgium, earning the Pontifical S.T.B. in Theology, an M.A. in Religious Studies, and a Masters in Moral and Religious Sciences. Ordained to the priesthood in 1987, Fr. Weisenburger earned a pontifical J.C.L degree in Canon law, was Vicar General, and was appointed a Prelate of Honor to His Holiness by Pope Benedict XVI, with the title Reverend Monsignor. Following the 1995 bombing of the Murrah Federal Building in Oklahoma City, he served as an on-site chaplain for rescue workers. He was appointed Bishop of Salina, Kansas, by His Holiness, Pope Benedict XVI in February 2012. He was appointed the seventh Bishop of Tucson by His Holiness, Pope Francis in October 2017.