The weather narrative for San Diego is shaping to be a classic Southern California blend of cool coastal breezes and desert warmth, as the forecasts from the National Weather Service suggest a fluctuating pattern into the weekend. In its latest report, the NWS indicated that today's temperatures will cause the deserts to cool down. At the same time, the Inland Empire experiences an increase, with the coastal areas and valleys undergoing lesser changes in temperature.

According to the Area Forecast Discussion published early this morning, the region's weather is largely influenced by a coastal eddy, which will lead to night and morning low clouds extending into parts of the inland valleys. The deserts, expected to be cooler today, will see a slow rise in temperature over the weekend. Gusts of 35-45 mph winds were also noted in the Inland Empire and the Coachella Valley north of Interstate 10, which could affect locals' morning commutes and outdoor plans.

As for the weekend, the weather service forecasts "not much change in high temperatures for the coast and valleys" with a "few degrees above average for the inland valleys." The deserts will feel a heat up, peaking on Sunday at around 4 to 8 degrees above the average, and could hit the upper 90s or even 100 degrees in some lower desert areas. As the week progresses, the coast and valleys could see a slight cooldown entering Monday and Tuesday.

The Weather Service's forecasts, however, do bear some uncertainty towards the latter half of next week. The discrepancy hinges on the positioning of high pressure aloft, with possibilities oscillating between the immediate and off the West Coast. "Those that place high pressure aloft along the California coast are warmer while those farther off the West Coast with the high pressure aloft not as warm," the discussion notes. Meanwhile, mariners can breathe easy, as no hazardous marine conditions are projected through Sunday.

Weather watchers were assured that Skywarn activation is not necessary at the moment, yet spotters are encouraged to report significant weather conditions. San Diegans, accustomed to their climate variance by land and sea, must tether their expectations to real-time updates as May upholds its reputation for unpredictability.