| 9/2/2023 | Northern Illinois | 27 | at | Boston College (7-6) | 24 | OT | at ACC | |
| 9/9/2023 | Southern Illinois (8-5) | 14 | at | Northern Illinois | 11 | MVC (1AA) | ||
| 9/16/2023 | Northern Illinois | 11 | at | Nebraska (5-7) | 35 | at B10 | ||
| 9/23/2023 | Tulsa (4-8) | 22 | at | Northern Illinois | 14 | AAC | ||
| 9/30/2023 | Northern Illinois | 33 | at | Toledo (11-3,8-1) | 35 | |||
| 10/7/2023 | Northern Illinois | 55 | at | Akron (2-10,1-7) | 14 | |||
| 10/14/2023 | Ohio (10-3,6-2) | 13 | at | Northern Illinois | 23 | |||
| 10/21/2023 | Eastern Michigan (6-7,4-4) | 13 | at | Northern Illinois | 20 | |||
| 10/31/2023 | Northern Illinois | 31 | at | Central Michigan (5-7,3-5) | 37 | |||
| 11/7/2023 | Ball State (4-8,3-5) | 20 | at | Northern Illinois | 17 | |||
| 11/14/2023 | Western Michigan (4-8,3-5) | 0 | at | Northern Illinois | 24 | |||
| 11/25/2023 | Northern Illinois | 37 | at | Kent State (1-11,0-8) | 27 | |||
| 12/23/2023 | Arkansas State (6-7) | 19 | vs | Northern Illinois | 21 | Camelia Bowl - Montgomery AL | SBC |
| vs Northern Illinois | vs Other Opponents | Northern Illinois compared to OOs | |
| Record: | 6-7 | 67-83 | |
| Points Scored: | 21.00 | 22.70 | 1.70 |
| Points Allowed: | 24.92 | 26.06 | -1.14 |
| Margin: | -3.92 | -3.36 | 0.56 |
| Total Points: | 45.92 | 48.76 | -2.84 |