| 8/30/2018 | Western Illinois (5-6) | 23 | at | Montana State | 26 | MVC | ||
| 9/8/2018 | Montana State | 14 | at | South Dakota State (10-3) | 45 | at MVC | ||
| 9/15/2018 | Wagner (4-7) | 24 | at | Montana State | 47 | NE | ||
| 9/22/2018 | Montana State | 43 | at | Portland State (4-7,3-4) | 23 | |||
| 9/29/2018 | Eastern Washington (12-3,9-1) | 34 | at | Montana State | 17 | |||
| 10/13/2018 | Idaho (4-7,2-5) | 23 | at | Montana State | 24 | |||
| 10/20/2018 | Montana State | 24 | at | Weber State (10-3,7-1) | 34 | |||
| 10/27/2018 | Montana State | 17 | at | Idaho State (6-5,4-3) | 24 | |||
| 11/3/2018 | Cal Poly (5-6,4-5) | 42 | at | Montana State | 49 | |||
| 11/10/2018 | Northern Colorado (2-9,2-6) | 7 | at | Montana State | 35 | |||
| 11/17/2018 | Montana State | 29 | at | Montana (6-5,4-3) | 25 | |||
| 11/24/2018 | Incarnate Word (6-5) | 14 | at | Montana State | 35 | SLC | ||
| 12/1/2018 | Montana State | 10 | at | North Dakota State (15-0) | 52 | 1AA Playoff Round 2 | at MVC |
| vs Montana State | vs Other Opponents | Montana State compared to OOs | |
| Record: | 5-8 | 84-58 | |
| Points Scored: | 28.46 | 32.79 | 4.33 |
| Points Allowed: | 28.46 | 28.87 | -0.41 |
| Margin: | 0.00 | 3.92 | 3.92 |
| Total Points: | 56.92 | 61.66 | -4.74 |