By Doug Schneider
The weather still looks great for racing Friday and Saturday at Road America. Some morning clouds on Friday should clear out and leave mostly sunny skies in the afternoon. The main change to the forecast today is the increase in rain chances on Sunday. With previous model runs, it looks like the approaching low pressure system would be weak and hold off until Sunday night. The latest data indicates that it will be faster and stronger than the models previously indicated. So I've bumped up the rain chance on Sunday to 60%. Right now, the showers appear likely to start in the late morning or early afternoon, and may continue through the rest of the day. I don't expect the rain to be heavy, mainly just light on and off showers. Rainfall amounts may be between a tenth to a quarter inch.
Doug Schneider, Scott Martin, and Stephen McCoy are race fans and meteorologists dedicated to providing accurate forecasts and timely weather updates at racing venues around the world. We forecast for IndyCar, Indy Lights, Pro Mazda, USF2000, IMSA, Pirelli World Challenge, World Endurance Championship, and Trans Am Series races, as well as major SCCA and NASA events.