The NASCAR Nationwide Series will be at Iowa Speedway in Newton on this weekend for the U.S. Cellular 250. Practice on Friday should go off without a hitch with only a slight chance of rain during the day, the best chance will occur Friday night. The weather will be a bit iffy for the race with a chance of showers and thunderstorms on Saturday. Temperatures will be in the upper 70s. Rain is likely across the entire state late Friday night through the day on Saturday. Sunday will be the best day of the weekend, with sunny skies and highs in the lower 80s.