Sunrise from Mt. Woodson
Sunrise from Mt. Woodson in East County. Courtesy UCSD HPWREN network

The weather in San Diego County will continue to be calm on Sunday before a storm moves in next week, the National Weather Service said.

The weather was expected to be sunny, with mild days and clear, cool nights through Monday, forecasters said. The weak offshore flow was predicted to bring east winds to the mountains and passes but they will not be strong.

The marine layer was expected to remain shallow; any morning low clouds and fog near the coast should clear quickly.

“Weak ridging aloft, combined with weak offshore flow will continue dry and mild weather through Monday,” the weather service said. “Cooling will begin on Tuesday … For Wednesday and Thursday it will be much colder, with rain and snow showers possible.”

Highs Sunday were expected to be in the lower 70s near the coast, the upper 70s inland, around 80 in the valleys, the lower 70s in the mountains and the mid 80s in the deserts.

A Pacific trough was predicted to bring colder weather Tuesday, and then a chance for rain and mountain snow Wednesday and Thursday, the weather service said.

The strongest winds are expected Wednesday, and should at least reach the advisory level, forecasters said.

No hazardous marine weather was expected through Tuesday. A Pacific storm system could bring gusty westerly winds and choppy seas Wednesday and Thursday.

City News Service contributed to this article.