Our beautiful parish has a 150 year history here in O’Fallon! I invite you to join us, as a visitor or as a member of our loving parish family, as we continue that history of striving to follow Christ. I hope this website can answer your immediate questions, but you are always welcome to contact us personally, or better yet, to stop in for a visit to find Christ here... and bring Christ to the world.
Peace, Fr. Nick
Saturday Vigil: 5pm Sunday: 8am, 10am, 12-Noon, 5:30pm Monday-Friday: 6:30am, 8am & Saturday: 8am
Holy Day’s Vigil for Feast: 5:30pm Feast Day: 6:30am, 8am and 7pm
Mark your calendars for the most thrilling weekend of the year! The Assumption Fall Festival is bigger than ever on Saturday, Oct. 4 (2-11PM) and Sunday, Oct. 5 (11AM-5PM...
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We are quickly approaching the beginning of a new school year at Assumption, which means all new hires, teachers, subs, after school care workers, parent helpers, teacher...
We are only offering PSR classes on Wednesday evenings this year from 6:15-7:30PM to allow for a more unified and focused religious formation program. Plea...
Starting Tuesday, May 27, after summer officially begins, our 6:30AM and 8AM weekday Masses, and 8AM Saturday Mass, will be held in the Chapel until Labor Day. ...
The 25th Annual Men's Group Golf Tournament is SOLD OUT, and all 36 teams are ready to play, but you can still support Catholic education by sponsoring the event!&nbs...
Win a Quilt-of-the-Month! The Assumption Quilters are hosting a quilt raffle with 12 different drawings beginning August 2025 thru July 2026. All proceeds for the Qu...