I was driving with my girlfriend heading north on Temescal canyon road/Ontario avenue. Directly in front of me at a very far distance, a light caught my attention. I didn’t think anything of it at first I even mentioned calmly to my girlfriend I wonder what that light is? As we kept driving that far light happened to have gotten a lot closer all of a sudden to where we were able to see more definition of the light and began questioning this light, and started trying to follow it. We saw it for a few seconds before trees and houses began getting in the way of our site of the object. So I proceeded to turn right into State St. heading in the direction that the light appeared to be going. I made a right onto smerber Rd and saw the light again in the Northeast direction, the light was definitely round but I wasn’t close enough to see the actual object, I only saw the light it was generating. After the second time we didn’t see it anymore. The UFO appeared to be moving northeast and getting lower because houses and the mountain in the area began to get in the way of my girlfriend and my vision. I am convinced that I saw a UFO, I just wanted to get closer to see more Which was really hard at the speed it was moving and the landscape in that area that is really hilly which can block ones vision.