However, the Blue Angels will perform both days, as scheduled at 3:00 p.m.
The Navy's precision flying team ran through their entire routine Friday, along with the Snowbirds from the Canadian Air Force.
The pilots say you can see them from just about any spot.
Flight leader and commanding officer, Captain Mannix, says San Francisco is one of their favorite shows with a phenomenal venue and fantastic support from the city.
Watch raw video from Thursday and Friday's practices in the media player above.
For a schedule of Fleet Week events, click here.