Events

Sep 1 Tue
- STM Boys Golf @ Douglas 9 AM – 3 PM (Prairie Ridge Golf Club)
  St. Thomas More School
- STM MS/HS Cross Country @ Lead/Deadwood 10 AM – 1 PM (MS 10:00AM; HS 11:30AM)
  St. Thomas More School
- STM MS Football @ RC Christian 4 PM – 6 PM (RC Christian High School Hart Ranch)
  St. Thomas More School
- STM Volleyball vs Sturgis 5 PM – 8 PM (STM High School)
  St. Thomas More School
Sep 2 Wed
- First STM Mass of the Year- 9:00 (Cathedral OLPH)
  St. Thomas More School
- STM Mass 9 AM – 10 AM
  St. Thomas More School
Sep 3 Thu
- STM Boys Golf @ Belle Fourche 9 AM – 3 PM (Belle Fourche Country Club)
  St. Thomas More School
- STM Girls Tennis vs RC Central 4 PM – 6 PM (Parkview Tennis Courts)
  St. Thomas More School
- STM MS Volleyball @ Newell 4 PM – 6 PM (Newell Middle School)
  St. Thomas More School
- STM Comp Cheer @ Belle Fourche 5 PM – 7 PM (Belle Fourche High School)
  St. Thomas More School
Sep 4 Fri
- STM Volleyball @ Gillette Tournament (Gillette, WY)
  St. Thomas More School
- STM v Belle Fourche - Home - Senior Night
  St. Thomas More School
- Saint Shirt Day
  St. Thomas More School
- STM MS/HS Cross Country @ Spearfish 10 AM – 2 PM
  St. Thomas More School
- STM Football @ Hot Springs 6 PM – 9 PM (Hot Springs, SD Woodward Field)
  St. Thomas More School
Sep 5 Sat
- STM Volleyball @ Gillette Tournament (Gillette, WY)
  St. Thomas More School
- STM Girls Soccer @ Sioux Fall Christian 9 AM – 11 AM (Dakota Fields)
  St. Thomas More School
- STM Boys Soccer vs Sioux Falls Christian 11 AM – 1 PM (Dakota Fields)
  St. Thomas More School
Sep 7 Mon
- Homecoming Week
  St. Thomas More School
- Labor Day Holiday - NO SCHOOL
  St. Thomas More School
Sep 8 Tue
- 6th Grade Retreat (OLPH) (Cathedral OLPH)
  St. Thomas More School
- Homecoming Week
  St. Thomas More School
- STM Boys Golf @ Sturgis 4 PM – 8 PM (Boulder Canyon Golf Club)
  St. Thomas More School
- STM Girls Tennis vs RC Stevens 4 PM – 6 PM (Parkview Tennis Courts)
  St. Thomas More School
- STM MS Football vs Custer 4 PM – 6 PM (STM High School)
  St. Thomas More School
- STM Boys Soccer @ Sturgis 5 PM – 9 PM (Woodle Field Sturgis)
  St. Thomas More School
- STM Girls Soccer @ Sturgis 5 PM – 9 PM (Woodle Field Sturgis )
  St. Thomas More School
Sep 9 Wed
- Homecoming Week
  St. Thomas More School
Sep 10 Thu
- Homecoming Week
  St. Thomas More School
- STM Boys Golf @ Custer 9 AM – 3 PM (Rocky Knolls Golf Course)
  St. Thomas More School
- STM MS/HS Cross Country @ Belle Fourche 9 AM – 1 PM (Belle Fourche Country Club)
  St. Thomas More School
- STM Girls Tennis vs RC Christian 4 PM – 6 PM (Parkview Tennis Courts)
  St. Thomas More School
- STM MS Volleyball @ Sturgis 4 PM – 6 PM (Sturgis MS)
  St. Thomas More School
Sep 11 Fri
- Homecoming Week
  St. Thomas More School
- STM Volleyball @ RC Invite (Monument Arena)
  St. Thomas More School
- STM & Hall of Fame Mass 9 AM – 10 AM (OLPH)
  St. Thomas More School
- Hall of Fame Induction 10 AM – 11 AM (OLPH)
  St. Thomas More School
- Hall of Fame Mixer in STM Commons 4 PM – 9 PM (STM Commons)
  St. Thomas More School
- STM Football vs Winner 6 PM – 9 PM (STM High School)
  St. Thomas More School
Sep 12 Sat
- STM MS Volleyball @ Douglas 9 AM – 3 PM (Douglas Middle School)
  St. Thomas More School
- STM MS Volleyball @ Newell 9 AM – 3 PM (Newell Middle School)
  St. Thomas More School
- STM Volleyball @ RC Invite 9 AM – 10 AM (Monument Arena)
  St. Thomas More School
- STM Cross Country @ Sioux Falls 11 AM – 1 PM
  St. Thomas More School
- STM Girls Soccer @ Belle Fourche 11 AM – 1 PM (Roundup Sports Complex Soccer Fields)
  St. Thomas More School
- STM Boys Soccer @ Belle Fourche 1 PM – 3 PM (Roundup Sports Complex Soccer Fields)
  St. Thomas More School
Sep 14 Mon
- STM Boys Golf @ Hot Spings 9 AM – 3 PM (Southern Hills Golf Club)
  St. Thomas More School
- STM Girls Tennis @ Aberdeen 1 PM – 3 PM (Aberdeen Christian High School)
  St. Thomas More School
- STM JV Football vs Douglas 4 PM – 6 PM (STM High School)
  St. Thomas More School
- STM MS Volleyball @ Lead-Deadwood 4 PM – 6 PM (Lead-Deadwood )
  St. Thomas More School
- STM Comp Cheer @ Spearfish 5 PM – 7 PM (Spearfish High School)
  St. Thomas More School
Sep 15 Tue
- STM Boys Golf @ Spearfish 10 AM – 3 PM (Spearfish Country Club)
  St. Thomas More School
- STM MS Cross Country @ Stagebarn 12:30 PM – 2 PM (Stagebarn MS)
  St. Thomas More School
- STM Girls Soccer vs RC Stevens 5 PM – 7 PM (Dakota Fields)
  St. Thomas More School
- STM Volleyball vs Custer 5 PM – 9 PM (STM HS Gym)
  St. Thomas More School
- STM Boys Soccer vs RC Stevens 7 PM – 9 PM (Dakota Fields)
  St. Thomas More School
Sep 16 Wed
- STM 9:00 Mass with Eucharistic Procession after Mass 10 AM – 11 AM (Cathedral OLPH)
  St. Thomas More School
Sep 17 Thu
- STM MS/HS Cross Country @ Custer 2 PM – 4 PM (Custer)
  St. Thomas More School
- STM MS Volleyball vs North MS 4 PM – 6 PM (STM MS Gym)
  St. Thomas More School
- STM Girls Soccer @ RC Central 5 PM – 7 PM (Sioux Park Complex)
  St. Thomas More School
- STM Volleyball @ Bennett County 5 PM – 9 PM (Bennett County HS, Martin SD)
  St. Thomas More School
- STM Boys Soccer @ RC Central 7 PM – 9 PM (Sioux Park Complex)
  St. Thomas More School
Sep 18 Fri
- The Cavalier Online Auction Opens at Noon
  St. Thomas More School
- STM MS Cross Country @ Newell 3:30 PM – 5 PM (Newell)
  St. Thomas More School
- STM MS Volleyball vs RC South 4 PM – 6 PM (STM MS Gym)
  St. Thomas More School
- STM Football @ Chamberlain 7 PM – 9 PM (Chamberlain HS)
  St. Thomas More School
Sep 19 Sat
- STM Cross Country @Douglas (Prairie Ridge Golf Club)
  St. Thomas More School
- STM JV Girls Tennis @ Spearfish (Spearfish HS)
  St. Thomas More School
- STM MS Volleyball @ Hermosa 9 AM – 4 PM (Hermosa MS)
  St. Thomas More School
Sep 21 Mon
- STM Boys Golf @ Sturgis (Boulder Canyon GC)
  St. Thomas More School
- STM MS Volleyball @ Hot Springs 4 PM – 6 PM (Hot Springs MS)
  St. Thomas More School
Sep 22 Tue
- STM Girls Tennis @ RC Stevens 4 PM – 6 PM (Sioux Park Complex)
  St. Thomas More School
- STM MS Football vs Sturgis 4 PM – 6 PM (STM HS Field)
  St. Thomas More School
- STM GIrls Soccer vs Sturgis 5 PM – 9 PM (Dakota Fields)
  St. Thomas More School
Sep 23 Wed
- Freshman Impact
  St. Thomas More School
- STM MS School Pictures
  St. Thomas More School
- STM 9:00 Mass 9 AM – 10 AM (Cathedral OLPH)
  St. Thomas More School
- Adoremus (Terra Sancta, Holy Cross Chapel) 10 AM – 11 AM (Holy Cross Chapel)
  St. Thomas More School
Sep 24 Thu
- STM Girls Tennis @ Pierre (Griffin Park)
  St. Thomas More School
- STM HS School Pictures
  St. Thomas More School
- STM JV Boys Golf @ Douglas 9 AM – 12 PM (Prairie Ridge GC)
  St. Thomas More School
- STM Cross Country @ Hart Ranch 1 PM – 3 PM (Hart Ranch Campground)
  St. Thomas More School
- STM MS Volleyball vs Belle Fourche 4 PM – 6 PM (STM MS)
  St. Thomas More School
Sep 25 Fri
- STM GIrls Tennis @ Sioux Falls
  St. Thomas More School
- STM MS/HS Cross Country @ Hart Ranch 9 AM – 1 PM (Hart Ranch Campground)
  St. Thomas More School
Sep 26 Sat
- STM Volleyball @ Pentagon Classic (Sioux Falls Pentagon)
  St. Thomas More School
- STM Girls Tennis @ Sioux Falls 8 AM – 10 AM
  St. Thomas More School
- STM Girls Soccer @ Douglas 9 AM – 11 AM (Box Elder)
  St. Thomas More School
- STM Boys Soccer @ Douglas 11 AM – 1 PM (Box Elder)
  St. Thomas More School
- STM Comp Cheer @ RC Stevens 11 AM – 1 PM (RC Stevens HS Gym)
  St. Thomas More School
- The Cavalier Dinner and Fundraiser 5 PM – 11 PM (The BOX - Box Elder)
  St. Thomas More School
Sep 27 Sun
- Senior Retreat (Placerville Camp)
  St. Thomas More School
- The Cavalier Online Auction Closes at 8 PM
  St. Thomas More School
Sep 28 Mon
- Pilgrimage to Rome for Dillon Johnson’s Deaconate Ordination
  St. Thomas More School
- SES Missoula Children’s Theater THE LITTLE MERMAID - Sept 28-Oct 3
  St. Thomas More School
- STM Boys Golf @ Belle Fourche 9 AM – 3 PM (Belle Fourche Country Club)
  St. Thomas More School
- STM JV Football @RC Christian 4 PM – 6 PM (RC Christian School)
  St. Thomas More School
- RCCSS Board Meeting 5 PM – 7 PM (Chancery Building)
  St. Thomas More School
Sep 29 Tue
- Pilgrimage to Rome for Dillon Johnson’s Deaconate Ordination
  St. Thomas More School
- STM Girls Soccer vs Spearfish 4 PM – 6 PM (Dakota Fields)
  St. Thomas More School
- STM Girls Tennis @ Spearfish 4 PM – 6 PM (Spearfish HS)
  St. Thomas More School
- STM MS Volleyball vs Spearfish 4 PM – 6 PM (STM MS Gym)
  St. Thomas More School
- STM Volleyball @ Spearfish 5 PM – 9 PM (Spearfish HS)
  St. Thomas More School
- STM Boys Soccer vs Spearfish 6 PM – 8 PM (Dakota Fields)
  St. Thomas More School
Sep 30 Wed
- Pilgrimage to Rome for Dillon Johnson’s Deaconate Ordination
  St. Thomas More School
- Senior Banner Photos - STM Gym 7:30am 7:30 AM – 8 AM (STM Gym)
  St. Thomas More School
- STM 9:00 Mass 9 AM – 10 AM (Cathedral OLPH)
  St. Thomas More School

Events in September 2026
Su	Mo	Tu	We	Th	Fr	Sa
	One event •	4 events •••	2 events ••	4 events •••	5 events •••	3 events •••
	2 events ••	7 events •••	One event •	5 events •••	6 events •••	6 events •••
	5 events •••	5 events •••	One event •	5 events •••	4 events •••	3 events •••
	2 events ••	3 events •••	4 events •••	5 events •••	2 events ••	6 events •••
2 events ••	5 events •••	6 events •••	3 events •••	4 events •••	5 events •••	5 events •••

Calendars

St. Elizabeth Ann Seton School
St. Thomas More School
Activities

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Events

St. Thomas More Middle School

St. Thomas More High School

St. Elizabeth Seton Preschool

St. Elizabeth Seton Elementary