The end of the week is revealing a cool-down for the area. A deep marine layer returns again tonight and thanks to an upper low there could be enough moisture around for drizzle or light showers with the deep marine layer early Friday. Then the instability could fire off a few showers or even isolated thunderstorms at higher elevations Friday afternoon.
The weekend we will see a fast moving trough thru on Friday night into early Saturday just keeping us cool and partly cloudy Saturday. There is still low level moisture sitting around Sunday for partly to mostly cloudy conditions again, holding temps in the 60s for most.
There is another upper level trough Monday into Tuesday but models like it less than prior days. I'd still say there is a shower chance but total from Friday into Tuesday would be less than .25". It may end up as more of a wind than shower generator.
Warmer weather develops quickly after that, a ridge pumps up and would drive some strong winds across Santa Barbara county. 70s and even 80s could return next w