He said the Vatican had just notified him of the beatification and he was announcing the news "with great joy and thanksgiving."
Plans for the beatification are already underway, the bishop said. The ceremony will be at 10 a.m. local time at the Cathedral of St. Mary of the Immaculate Conception in Peoria.
"This is the same cathedral where (Archbishop) Sheen was ordained a priest 100 years ago on Sept. 20, 1919," said a Peoria diocesan news release. "It seems entirely fitting that the beatification will take place at the end of this 100-year anniversary of his ordination to the priesthood."
The cathedral also is the current resting place for the archbishop, who is entombed in a marble vault next to the altar where he was ordained.
The diocese planned to release more information about the beatification over the next few days. News about the beatification and the life of Archbishop Sheen can be found at celebratesheen.com.
In July, Bishop Jenky announced Pope Francis had approved a miracle attributed to the intercession of Archbishop Sheen, leading the way to his beatification.
The miracle concerns the healing of James Fulton Engstrom of Washington, Illinois, who was considered stillborn when he was delivered during a planned home birth Sept. 16, 2010. His parents, Bonnie and Travis Engstrom, immediately invoked the prayers of Archbishop Sheen and encouraged others to seek his intercession after the baby was taken to OSF HealthCare St. Francis Medical Center in Peoria for emergency treatment.
Just as doctors were preparing to declare that he was dead, James Fulton's tiny heart started to beat at a normal rate for a healthy newborn. He had been without a pulse for 61 minutes.
Despite dire prognoses for his future, including that he would probably be blind and never walk, talk or be able to feed himself, the child has thrived. Now a healthy 8-year-old, he likes chicken nuggets, "Star Wars" and riding his bicycle.
The decree of the miracle came about a week after Archbishop Sheen's remains were transferred from New York to Peoria's cathedral.
"It is truly amazing how God continues to work miracles," Bishop Jenky said in the statement about the papal decree on the miracle.
Archbishop Sheen had been placed in a crypt below the main altar of St. Patrick's Cathedral in New York after his death Dec. 9, 1979. After protracted legal proceedings, his remains were brought to Peoria June 27 at the request of his niece, Joan Sheen Cunningham, and now rest in a new marble tomb in the Peoria cathedral.