Myers was 12 of 21 for 137 yards, including a 42-yard TD pass to Hunter Sharp to tie it at 10. Myers scored the go-ahead touchdown on a 26-yard run and led all rushers on 16 carries.
The Aggies (2-2) led 17-10 at halftime in a game delayed about 45 minutes because of lightning.
Utah State was in the red zone three times in the second half - twice after recovering fumbles - but had to settle for field goals. LaJuan Hunt scored on a 33-yard run in the fourth.