by Doug Schneider (@Race4caster)
Rain chances will be increasing through the day on Friday, and there could be some light rain around for qualifying Friday afternoon. Rain is likely by Friday night, with about 0.25 to 0.5 inches of rain expected overnight. Most of the rain should end early Saturday morning, but there could be a little that lingers past sunrise. However, I'm confident that it will end in time for the start of the race at 11 AM. The rest of the 25 Hours looks dry, with some periods of clouds now and then.
Doug Schneider and Scott Martin 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/MRTI, IMSA, Pirelli World Challenge, World Endurance Championship, and Trans Am Series races, as well as major SCCA and NASA events.