An upper level trough will be dropping southeast from the Pacific Northwest region to the Four Corners region on Friday. The models keep any rain with this system well to the east of Long Beach, so I don't expect that it will have any big impact, other than increasing the northwest winds. It will be breezy on Friday, with winds mainly between 10 and 20 mph, gusting to near 25 mph.
Saturday will feature plenty of sunshine and lighter winds as low pressure to the east moves farther away. Clouds are expected to increase on Sunday as another upper level disturbance approaches, but moisture with it will be too limited to produce any rainfall. The clouds will be mainly high cirrus clouds, and may serve to take a degree or two off the high temperatures compared to Saturday. Light onshore winds can be expected.