Each morning will start with low clouds, followed by afternoon sunshine for the U.S. Open.
Sunscreen will be a must with the bright sunshine expected later on.
While cooler than the recent highs in the 80s for San Francisco, near-normal afternoon highs in the upper 60s to low 70s will be pleasant.
Winds will be a bit breezy at times over the next few days with gusts up to 30 mph.
Steve Meeker, general chairman of the U.S. Open at the Olympic Club, said in a press release 33,500 spectators are expected.
The peak attendance, including all spectators, vendors, media and volunteers is expected to be about 45,000 people each day for a weekly total of about 220,000.
As of April 30, 97 percent of the tickets for the event were sold and they expect the event to sell out for the 26th straight year.
Income from this year's USGA U.S. Open is estimated to be between 140-170 million dollars.
There are 152 players representing 22 countries in this year's USGA U.S. Open.
Content contributed by AccuWeather.com Meteorologist Meghan Evans.
Weather and Golf