An upper atmospheric ridge and surface high pressure are in firm control of the weather in Central and Southern California. Temps Wednesday will do what they did Tuesday, we'll make a quick run into the mid 70s with some scattered 80s possible. Offshore winds during the night and morning hours will limit any low cloud cover. This means plenty of sunshine and limited cool marine influenced air which is how you fuel 70s and 80s in February.
Lows will also be mild near the coast in the 40s and 50s while inland locations can still briefly dip into the 30s. Not a lot of day to day differences into Thursday, perhaps a little minor cooling as high clouds increase Thursday and Friday.
Saturday the upper level ridge looks to break and onshore flow will be dominant and temps drop into the 60s and lower 70s.
Sunday an approaching trough should cut-off an area of low pressure but after days of offshore winds and being the trajectory might be too far West the rain chances look to be scattered. Right now looks like a later arrival Sunday, so shouldn't ruin outdoor plans but temps will drop into the lower 60s.
That system pulls out Monday and temps look to start warming again Tuesday.
Long range still showing a potentially very active second week of March.