SpaceX postponed the launch of a new fleet of Starlink internet satellites on Monday, September 28 due to bad weather condition at the mission's Florida launch site.

SpaceX is standing down from its launch attempt of 60 Starlink satellites on Monday, September 28 due to weather. SpaceX will announce a new target launch date once confirmed, and Falcon 9 will lift off from Launch Complex 39A (LC-39A) at Kennedy Space Center in Florida.
Source: SpaceX