The Assumption of the Blessed Virgin Mary is a Catholic holy day, celebrated on August 15th, that commemorates the belief that Mary, the mother of Jesus, was taken body and soul into Heaven at the end of her life. It's a Holy Day of Obligation for Catholics Parish office closed. Mass at 7:45 am - St. Joseph High School at OLS 6:00 pm - Fr. Joseph, in English 7:00 pm - Fr. Jacob, en Español