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Assumption of the BVM

403 N. Main St.
O'Fallon, Missouri 63366-2205
Phone: (636) 240-3721
Email: nicholaskastenholz@archstl.org
Website: https://assumptionbvm.org/

Mass Times

Weekday
6:30am, 8:00am

Saturday
8:00 am(MH), Vigil Mass 5:00pm

Sunday
8:00am, 10:00am, Noon
5:30pm Life Teen

Reconciliation
Every Saturday, 4:00pm-4:50pm
Weekdays, 7:30-7:50am
and by appointment

Eucharistic Adoration, in chapel
Tuesday 8:30am-10:00pm

Rosary,
Every Tueday, at 6:15pm, in chapel;
30min before every Sunday Mass

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Liturgical Calendar

18th	Tuesday	Tuesday, 20th week in Ordinary Time
19th	Wednesday	Saint John Eudes, priest Wednesday, 20th week in Ordinary Time
20th	Thursday	Saint Bernard of Clairvaux, abbot and doctor of the Church
21st	Friday	Saint Pius X, pope
22nd	Saturday	Queenship of Blessed Virgin Mary
23rd	Sunday	21st Sunday in Ordinary Time
24th	Monday	Saint Bartholomew the Apostle
25th	Tuesday	Saint Joseph of Calasanz, priest Saint Louis Tuesday, 21st week in Ordinary Time

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But he was pierced for our transgressions, he was crushed for our iniquities; the punishment that brought us peace was upon him, and by his wounds we are healed.

Isaiah 53:5

Daily Mass Readings

Tuesday of the Twentieth Week in Ordinary Time

Aug. 18, 2026

Monday of the Twentieth Week in Ordinary Time

Aug. 17, 2026

Twentieth Sunday in Ordinary Time

Aug. 16, 2026

Solemnity of the Assumption of the Blessed Virgin Mary

Aug. 15, 2026

Memorial of Saint Maximilian Kolbe, Priest and Martyr

Aug. 14, 2026

Thursday of the Nineteenth Week in Ordinary Time