6/19/2026 - With construction started, Sunday Mass at St. Theodore in Avon will require people to enter through the back door of the church. Please be sure to arrive early because if you come late, you will have to walk in front of the Altar to find a seat.
Weekend Mass Times: 
Immaculate Conception Church
         Saturday    5:00 PM   
         Sunday      9:00 AM  
St. Theodore Mission  (Avon)
       Sunday    11:15 AM    
Weekday Mass Times:  
       Tuesday-Thursday @ 8:00 AM
         Monday & Friday @ Noon 
  (Daily Masses are in the Chapel at 611 Clark St.)
Rite of Reconciliation:   
       Saturday from 3:30 - 4:30 PM  
       Confession is also available by appointment
Click Church names for maps/directions.
    Pastor: Rev. Joseph P. Fleming
    Office Phone: (406) 846-4114
    email:   [email protected]
Ministries Web Page:
Check out the completed Architectural designs for the St. Theodore addition.