Humble ISD will hold 2021 graduation ceremonies according to the following schedule:
| SCHOOL | TIME | LOCATION |
| Quest Early College High School | 7 p.m. Thursday, May 20 | Humble Civic Center |
| Atascocita High School | 8 p.m. Tuesday, June 1 | Turner Stadium |
| Kingwood High School | 8 p.m. Wednesday, June 2 | Turner Stadium |
| Summer Creek High School | 8 p.m. Thursday, June 3 | Turner Stadium |
| Humble High School | 8 p.m. Friday, June 4 | Turner Stadium |
| Kingwood Park High School | 9 a.m. Saturday, June 5 | Turner Stadium |