San Diegans in inland areas can expect a gradual uptick in heat as the week marches on. According to the National Weather Service San Diego, after a stint of gusty winds and a brief cool-down, there’s a warming trend on the horizon extending into next week. This comes along with the forecast of a potential tropical moisture influx that could spell out a slight chance of showers, primarily over the mountains, later in the week.
While the past few days saw a few degrees dip below normal, and while weak offshore winds helped to stir in some warmth west of the mountains Saturday, meteorologists are keeping an eye on a complex weather script that may unfold in the next several days. According to the NWS San Diego, "Morning water vapor imagery shows the upper level trough axis moving into the Colorado River Valley." However, the gusty winds will continue to weaken as of Sunday morning. The outlook suggests another brief cool-down early next week.
The complication arises midweek when forecast models diverge, adding uncertainty to the region's weather narrative. "By Wednesday evening ensembles really begin to diverge on the placement of the low as it drops down off the Pac NW coast," the Area Forecast Discussion by the National Weather Service San Diego outlines. The stakes of these varying scenarios are high – they’ll dictate not just high temperatures, but also the trajectory of tropical moisture and the prospect of rainfall for the area.
Skies will clear by mid-morning for most coastal areas and valleys despite the possibility of some patchy low clouds lingering into the daytime. "Any low clouds will clear by mid morning," the NWS San Diego states, projecting a clear and visually unobstructed horizon for aviators. Marine conditions in San Diego waters are expected to remain non-threatening through Wednesday, with winds and seas settling gradually after this morning's activity.
