Night and morning low cloud coverage was expected to be confined to the San Diego County coast after Sunday and warmer conditions were forecast for most of this week, the National Weather Service said.
Showers and thunderstorms were forecast over the mountains and desert mountain slopes Sunday and Monday.
Satellite imagery from 9 a.m. Sunday was showing widespread low cloud coverage that filled in the coastal basin. Sunday was expected to be the last day of the deep marine layer, as high pressure to the southwest strengthens across California.
High temperatures along the coast Sunday are predicted to reach the mid-70s, upper 70s in the western valleys, lower 80s near the foothills, around 80 in the mountains and 90s in the deserts, according to the weather agency.
Dry conditions were predicted after Monday with the next chance of precipitation, mainly over the mountains, next weekend, forecasters said.
Low clouds were expected to be confined to areas closer to the coast for much of this week.
An increase in temperatures was predicted through Thursday for the deserts and through Friday or Saturday for areas west of the mountains.
No hazardous marine weather was expected through Thursday.
City News Service contributed to this article.