August 2025
| DATE | TIME | GROUP | EVENT | LOCATION |
| August 4-8 | 12:00 – 9:00 PM | Marching Band | Band camp | GBS |
| August 8 (Fri) | 6:00 PM 7:00 PM | Parents | Parent meeting followed by band camp performance | GBS |
| August 8 (Mon) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| August 14 (Thur) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| August 16 (Sat) | TBD | Marching band | Fall Sports Kick-Off | GBS |
| August 18 (Mon) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| August 21 (Thur) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| August 25 (Mon) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| August 28 (Thur) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| August 29 (Fri) | 7:00 PM | Marching band | Home football game | GBS |
September 2025
| DATE | TIME | GROUP | EVENT | LOCATION |
| September 4 (Thur) | School hours | Marching band | Middle School Band Day | GBS |
| September 4 (Thur) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| September 8 (Mon) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| September 11 (Thur) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| September 12 (Fri) | 7:00 PM | Marching band | Home football game | GBS |
| September 13 (Sat) | TBD | Marching band | Victor J. Andrew Marching Invitational | Victor J. Andrew High School |
| September 15 (Mon) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| September 18 (Thur) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| September 20 (Sat) | TBD | Marching band | Red and Black Fall Classic | Northern Illinois University |
| September 22 (Mon) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| September 25 (Thur) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| September 29 (Mon) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
October 2025
| DATE | TIME | GROUP | EVENT | LOCATION |
| October 4 (Sat) | TBD | Marching band | Downers Grove South Mustang Music Bowl | Downers Grove South High School |
| October 6 (Mon) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| October 9 (Thur) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| October 10 (Fri) | 7:00 PM | Marching band | Pep rally & Homecoming football game | GBS |
| October 11 (Sat) | 10:00 AM | Marching band | Homecoming parade | Downtown Glenview |
| October 13 (Mon) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| October 16 (Thur) | 5:45 – 9:00 PM | Marching band | Rehearsal | GBS |
| October 18 (Sat) | TBA | Marching band | Lincoln-Way Invitational | Lincoln-Way West High School |
| October 20 (Mon) | 7:00 PM | Marching band | Band-O-Rama | GBS |
| October 24 (Fri) | 7:00 PM | Marching band | Home football game | GBS |
November 2025
| DATE | TIME | GROUP | EVENT | LOCATION |
| November 8 (Sat) | 3:00 PM | By audition | ILMEA District 7 Senior Festival Concert | TBA |
| November 10 (Mon) | 7:00 PM | Wind Ensemble | Glenview Band Invitational | GBS |
| November 15 (Sat) | 4:00 PM | By audition | ILMEA District 7 Jazz Festival Concert | Libertyville High School |
December 2025
| DATE | TIME | GROUP | EVENT | LOCATION |
| December 14 (Sun) | 3:00 PM | All concert bands | Winter Band Concert | GBS |
January 2026
| DATE | TIME | GROUP | EVENT | LOCATION |
| January 10, 2026 (Sat) | 2:30 PM | Selected students | Northshore Honor Band Concert | Lake Forest High School |
| January 16-19 (Fri-Mon) | All day | Optional – any student in band | GBS Band & Choir trip to Nashville | Nashville, TN |
| January 27 (Tue) | 7:00 PM | Jazz bands | Jazz Cafe & Silent Auction | GBS |
| January 28-31 (Wed-Sat) | All day | By audition | ILMEA All State Festival | Peoria, IL |
February 2026
| DATE | TIME | GROUP | EVENT | LOCATION |
| February 18-21 (Wed-Sat) | 7:00 PM 2:00 PM (Sat only) | Pit | Variety Show | GBS |
March 2026
| DATE | TIME | GROUP | EVENT | LOCATION |
| March 5 (Thur) | 7:00 PM | All concert bands | March Band Concert | GBS |
May 2026
| DATE | TIME | GROUP | EVENT | LOCATION |
| May 7 (Thur) | 7:00 PM | All concert bands | Spring Band Concert | GBS |
| May 18 (Mon) | 7:00 PM | Jazz bands | Jazz Night | GBS |
| May 25 (Mon) | 11:00 AM | Marching band | Memorial Day Parade | Downtown Glenview |
July 2026
| DATE | TIME | GROUP | EVENT | LOCATION |
| July 4 (Sat) | 11:00 AM | Marching band | Fourth of July Parade | Downtown Glenview |
Check back regularly for schedule updates to performances and special rehearsals.
