Our beautiful parish has a 154 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
Join the Assumption Respect Life Apostolate Ministry (Pro-Life) for an inspiring evening, as we welcome Brian Westbrook from Coalition Life, to share his powerful te...
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The 10th Annual Easter Egg Hunt is back, Palm Sunday, March 29! Children ages 12 and under and their parents are invited to join us for the 8AM or 10AM Mass, and then ...
This Lenten Season, Assumption parishioners unlock the profound beauty and depth of the Catholic faith with Symbolon: The Faith of the Church with Father Nick Kasten...
Grow closer to Christ this Lenten Season! Lent begins on Ash Wednesday, February 18, and leads us to the Triduum of Holy Thursday, Good Friday and Holy Saturday, to culmi...
We are blessed to welcome Reverend Father Brad Modde to Assumption as our new priest in residence. Guided by faith and the Holy Spirit, Father Brad will ce...
We now have an Assumption Chapel Endowment Fund! Just like our houses, God’s house also needs work to keep it maintained and looking nice. Here are a few t...