Authorities say the suspect forced the 41-year-old victim into an cemetery in Elmhurst at knifepoint and attacked her.
The incident happened just before 5 a.m. in the vicinity of Corona Avenue.
The victim was transported to an area hospital where she was treated and released.
The suspect is described as a Hispanic male, approximately 25 to 30 years old and weighing between 150 and 175 pounds, with black spiked hair and brown eyes.
Anyone with information in regards to this incident is asked to call Crime Stoppers at 1-800-577-TIPS (8477).