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Calendar

Calendar

March 2026
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  • GENERAL
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1
2
3
Model UN
Model UN
March 3, 2026
OFF CAMPUS
4
Model UN
Model UN
March 4, 2026
OFF CAMPUS
5
Model UN
Model UN
March 5, 2026
OFF CAMPUS
6
No School
No School
March 6, 2026
7
Althoff Catholic Gala
Althoff Catholic Gala
March 7, 2026
OFF CAMPUS

Athoff Catholic High School Presents "Denim & Diamonds" Gala and Auction Saturday, March 7th, 2026 The Regency O'Fallon 400 Regency Park, O'Fallon, Illinois 6:00 p.m. Cocktails | 7:00 p.m. D...
8
9
No School
No School
March 9, 2026
10
11
12
13
14
15
16
17
18
Grandparents Day Mass for 9th & 10th Graders
Grandparents Day Mass for 9th & 10th Graders
March 18, 2026
19
Parents & Friends Club Meeting
Parents & Friends Club Meeting
March 19, 2026
Junior Retreat @ Camp Ondesonk (Group 3)
Junior Retreat @ Camp Ondesonk (Group 3)
March 19, 2026
OFF CAMPUS
20
Junior Retreat @ Camp Ondesonk (Group 3)
Junior Retreat @ Camp Ondesonk (Group 3)
March 20, 2026
OFF CAMPUS
21
22
23
School Board Meeting
School Board Meeting
March 23, 2026
24
25
Grandparents Day Mass for 11th & 12th Graders
Grandparents Day Mass for 11th & 12th Graders
March 25, 2026
26
27
28
29
30
31
Tuesday, March 3
Model UN
March 3, 2026 | OFF CAMPUS
Wednesday, March 4
Model UN
March 4, 2026 | OFF CAMPUS
Thursday, March 5
Model UN
March 5, 2026 | OFF CAMPUS
Friday, March 6
No School
March 6, 2026
Saturday, March 7
Althoff Catholic Gala
March 7, 2026 | OFF CAMPUS
Athoff Catholic High School Presents "Denim & Diamonds" Gala and Auction Saturday, March 7th, 2026 The Regency O'Fallon 400 Regency Park, O'Fallon, Illinois 6:00 p.m. Cocktails | 7:00 p.m. Dinner 8:00 p.m. Program and Live Auction Followed by Live Entertainment by Dueling Pianists, Felix and Fingers $100.00 per person | $800.00 per table Denim and Diamonds Dress Attire R.S.V.P. by February 16, 2026 by visiting https://althoffcatholic.ejoinme.org/gala2026
Monday, March 9
No School
March 9, 2026
Wednesday, March 18
Grandparents Day Mass for 9th & 10th Graders
March 18, 2026
Thursday, March 19
Parents & Friends Club Meeting
March 19, 2026
Junior Retreat @ Camp Ondesonk (Group 3)
March 19, 2026 | OFF CAMPUS
Friday, March 20
Junior Retreat @ Camp Ondesonk (Group 3)
March 20, 2026 | OFF CAMPUS
Monday, March 23
School Board Meeting
March 23, 2026
Wednesday, March 25
Grandparents Day Mass for 11th & 12th Graders
March 25, 2026
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5401 W Main St.
Belleville, IL 62226
Main Office: 618.235.1100
Fax: 618.235.9535
info@althoffcatholic.org

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FACTS Website Services

Althoff Catholic High School admits students of any race, color, national, or ethnic origin to all the rights, privileges, programs, and activities generally accorded or made available to students at the school. It does not discriminate on the basis of race, color, national, or ethnic origin in administration of its educational policies, admissions policies, scholarship and loan programs, and athletic and other school-administered programs.

7th Grade Placem