San Diegans can expect cooler temperatures this week with highs dipping 5 to 10 degrees below average for inland areas, according to the National Weather Service San Diego, giving folks a brief respite from the usual heat before things start warming up again over the weekend. Coastal areas will see highs ranging from 66 to 72 degrees today, while inland valleys can expect temperatures between 72 and 82 degrees, and the high desert will experience warmer conditions with highs between 82 and 89 degrees.
The cooling trend today is attributed to a weak upper level low pressure system passing across California, which is set to bring high temperatures down significantly; San Diego will have a moderate daytime high near 68 and mostly cloudy skies tonight with a low around 58 as per the detailed 7-day forecast, the inland valleys and high desert regions are expected to feel a marked decrease, with temperatures falling 8 to 12 degrees below the seasonal average, as they embrace the mid to upper 60s near the coast, stretching to the mid-70s to mid-80s in the Inland Empire and the mid to upper 90s for the lower deserts, creating an environment that's a tad cooler than usual for the residents traversing these varied landscapes.
However, there is a warming trend on the horizon, "High temperatures today will cool to 5 to 10 degrees below average for inland areas, then slowly warm during the week to around 5 degrees above average for next weekend," the NWS discussion indicates, forecasting high temperatures for next weekend that will creep up to around 5 degrees above average, which could translate to lower 70s near the coast and a scorching 108 to 112 for the lower deserts. The marine layer is also expected to hang around, about 2500 feet deep into Tuesday before diminishing, which will have fingers of fog pushing into the valleys during the night and morning hours.
