FORECAST: WeatherUnderground — Mostly sunny with a high 83 degrees and winds from the south to southwest at 10 to 15 mph. It's expected to be 80 degrees with a 0% chance of rain at the start of the Xfinity race.

NASCAR's top two national series will head to Sonoma Raceway this weekend for their first and only visit to California this season. The road course north of San Francisco also will play host to the ARCA West Series over a three-day schedule of racing on its 11-turn,

The NASCAR Xfinity Series race at Chicago will be broadcast nationally on the CW Network. Streaming options for the race include FUBO in limited markets nationwide, which offers a free trial to potential subscribers.