Most of the Detroit Grand Prix event will have very nice weather, with dry conditions and pleasant temperatures expected for Saturday and Sunday. This will be due to a cold front that will move through the area Friday evening. The timing of this cold front will be the question for whether there are showers that affect the on-track activity late Friday. Most of Friday will be nice, but there is a slight chance (20%) that showers could arrive in the area before sunset, and affect some late afternoon sessions. It appears that if there is rain Friday afternoon or evening, it will be light. Most of the rain associated with the cold front will come later in the night. Saturday will be a little breezy behind the front, with a northwest wind between 10 and 15 mph, with some gusts up to 20 mph.