Weak offshore winds will replace the onshore flow, bringing localized east-to-northeast gusts of up to 35 mph near the coastal slopes of the mountains Tuesday morning, according to the National Weather Service.
These offshore conditions will clear the marine layer clouds, paving the way for sunny skies and a warming trend in San Diego County.
Highs Tuesday are forecast to reach 65 to 68 near the coast, 69 inland, 71 in the western valleys, 65 to 70 near the foothills, 54 to 63 in the mountains and around 70 in the desert, the NWS said.
Temperatures will climb steadily through Thursday, with Friday forecasted to be the warmest day of the week. Highs in some mountain and inland valley areas are expected to soar to about 10 degrees above seasonal averages.
The warm spell won’t last long, though.
A low-pressure system moving in from the north is predicted to shake things up over the weekend. This system will bring cooler temperatures, increased cloud cover and gusty west winds to the mountains and deserts. There’s also a chance of showers and mountain snow, primarily from coastal waters extending to the mountains, according to meteorologists.
