San Diegans brace for a mix of foggy mornings and warm afternoons as a marine layer rests upon the coast, and high pressure brings the heat inland. According to the most recent updates from the National Weather Service, today's forecast in San Diego has coastal highs lingering in the comfortable 65 to 70-degree range, with a sweltering spectrum of 70 to 78 degrees awaiting residents in inland Orange County and the San Diego Valleys. Those trekking to the Inland Empire can anticipate a slight uptick in heat, with mercury levels ranging from 78 to 83 degrees.
The marine layer, dense and pervasive this morning with depths noted at 2800 feet in San Diego County and 3400 feet in San Bernardino County, enveloped the Cajon Pass in a thick cloak of clouds and fog. Drizzle, enough to mandate the use of windshield wipers, graced northwestern San Diego County during the pre-dawn hours – "Fallbrook, Vista, Carlsbad, Cardiff, Encinitas and Del Mar, all of which recorded 0.01" of precipitation through 3 AM," as reported by the National Weather Service. Expect slow clearing inland after this morning's drizzle, with the likelihood of persistent cloud cover along the coast throughout the day.
Looking to the week ahead, from Monday through Wednesday, San Diegans will experience a warming trend, with highs forecasted in the mid-70s near the coast and up to 88 degrees in the valleys. While the mountain regions will enjoy temperatures in the 70s and 80s, the high desert will heat up to the low 90s, and the lower desert will scale up to a stifling 105 degrees.
However, the coastal areas are slated to witness minimal temperature variation, stubbornly remaining in the 60s to low 70s despite the marine layer's ever so slight retreat. As the NWS analysis suggests, this is due to "a 500 mb closed low stalls off the coast of northern Baja," which ensures the persistence of a cool coastal environment. Conversely, Mariners can expect smooth sailing as "no hazardous marine conditions are expected through Thursday," ensuring that the seas remain as tranquil as the pattern of the incoming Pacific breeze.
