Cool weather will persist in San Diego County on Saturday morning, but the mercury will rise quickly over the weekend and result in unseasonably hot temperatures on Sunday and Monday, according to the National Weather Service.
A weak trough of low pressure passed through Southern California on Friday, followed by another trough of low pressure from Northern California that will keep temperatures cool through Saturday, forecasters said.
Gusty conditions are expected in the mountains and deserts Saturday morning, with wind gusts potentially reaching 30-35 mph, according to the weather service.
After that system passes on Saturday, it will be replaced by a subtropical ridge of high pressure, forecasters said. That ridge will bring warm and dry conditions along with periods of weak Santa Ana winds from Sunday through Tuesday.
Winds out of the east and northeast on Sunday are expected to peak around 35 mph near the foothills and relative humidity will fall to around 15% on Monday, forecasters said.
The weather service issued a beach hazards statement warning of 6-and-a-half to 7-foot waves from late Friday night through Tuesday morning.
High temperatures Saturday are forecast to reach 63 to 68 near the coast, 69 inland, 71 to 76 in the valleys, 62 to 69 in the mountains and 76 to 81 in the deserts.
Highs on Sunday will be in the high-70s to low-80s in coastal areas and the western valleys, forecasters said.
— City News Service