A cold front is still expected to approach the area from the northwest on Sunday. I think most of the shower activity with the front will remain to the west while the race is taking place, but I can't entirely rule out a shower reaching the track. I've left the Impact for the day at None because I think that even if there is a shower (which is only a 20% chance of happening at all), it will be very light and won't influence the race too much. Overall, it will be a nice weekend to get out and watch some awesome race cars.