JOLIET, Ill. (AP) Extreme heat is a concern again as NASCAR closes out its annual weekend at Chicagoland Speedway.
Rain could become a factor, too.
There are scattered thunderstorms in the forecast for the NASCAR Cup Series race on Sunday afternoon. Paul Menard is set to start from the pole, and Martin Truex Jr. is going for his third consecutive victory at Chicagoland Speedway.
Temperatures were in the 90s for the Xfinity race on Saturday, and it reached well into triple digits inside the cars. Drivers put bags of ice in their suits and splashed cold water on their faces during pit stops.
More AP auto racing: https://racing.ap.org