The launch from Vandenberg Space Force Base was set for Thursday evening, but liftoff is now scheduled for no earlier than 7:30 p.m. Friday, according to the Hawthorne-based company.
The mission will send 22 Starlink internet satellites to low-Earth orbit. The launch will be the 30th Falcon 9 flight so far this year.
After the satellites are deployed, the booster will land on the "Of Course I Still Love You" droneship in the Pacific Ocean.
It was just last week that a similar Falcon 9 launch left a long, trailing plume across the Southern California sky.