The St. Patrick's Day Celebration in Billings is set for Saturday, March 18. There will be a Celtic Fair under Skypoint from 10 a.m.- 3 p.m., with a St. Patrick's Day parade at 11 a.m. After the parade, there will be performances of Irish dancing and Irish music. The Repeat Offenders will also take the stage at noon. People of all ages are welcome to join in a 4-square tournament, mini-golf and cornhole from 1 p.m. to 3 p.m.