Temperatures will trend cooler into Sunday as an approaching low pressure system brings clouds and cooler temperatures to the area.
There is a slight chance of afternoon thunderstorms across some of the mountains and interior locations on Friday. There will be gusty northwest winds are over the weekend and into early next week across portions of the area. Another warming trend is expected next week on Tuesday and Wednesday but late in the week looks like another trough moves into the Pac NW to moderate temps again.
I think the best chance of thunderstorms Friday will be in Ventura and SB county, and especially at higher elevations. There may be a slight chance over the SLO county mountains as well.
Outside of that some deep marine layer tonight into Friday morning and again into Saturday morning could produce more mist/drizzle at beach and coastal valley locations.
With all the cloud cover temps will take a hit, but that is welcome relief for most inland where several 100+ days have already taken place this week.