Age 80, of Mt. Lebanon, on Thursday February 4, 2021. Beloved husband of the late Donna L. (Ridinger) Warmbein; father of Kurt J., Jr., Keith P. and Kevin M. Warmbein; grandfather of Alyssa Mounts, Katie Miller, Chad, Mitchell, Garrett, Kayla, Erik, Phillip, Kyle, Brady, Grant and Jeffrey Warmbein; brother of Gretchen Hunt; also survived by seven great-grandchildren, nieces and nephews. There will be no visitation. A celebration of Jon's life will be planned for later this year by the family. In lieu of usual sympathetic expressions, please consider a contribution to Autism Speaks 2549 Railroad St. (Pittsburgh Chapter) Suite 100 Pittsburgh, PA 15222.