San Diego is gearing up for a climate shift over the coming days. The NWS has forecasted that a cool weather system from the Gulf of Alaska will reach the West Coast, which might bring some welcome showers to the Bay Area. However, Orange County might miss out on the rainfall, with "low confidence on timing though highest chance for showers will be Saturday afternoon through Sunday," NWS San Diego reported.
Residents inland can enjoy warmer temperatures through Friday, but should expect a drop over the weekend. The marine layer is steady between 2000 to 2500 feet deep and will push night and morning low clouds into the valleys, per the Area Forecast Discussion. This trend is expected to continue into Friday, and combined with the looming weather system, coastal areas might see some light precipitation beginning late Friday night.
The said weather system is anticipated to stir up stronger gusty west winds, particularly for the mountains and deserts. Saturday's conditions could see wind gusts reaching "40 to 50 mph and isolated gusts to 65 to 75 mph in the northern Coachella Valley below the San Gorgonio Pass," the NWS San Diego states. San Diego County, especially, should be on the lookout for rain, mainly from the coast to the mountains on Saturday night, with a 10 to 15 percent chance of receiving more than one-tenth of an inch of rainfall.
As the weekend closes, "The mountains and deserts will cool another 5 degrees on Sunday with high temperatures on Sunday as much as 15 to 20 degrees below average for the mountains," the NWS San Diego detailed. This cooling trend brings high temperatures on Sunday down to the lower to mid-60s along the coast, with the inland areas feeling the 60s and lower 70s, while lower deserts will drop to the upper 70s to mid-80s. Marine influence will wane by early next week, setting the stage for warmer and drier conditions.
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