San Diego is set to bask in an early summer heat with minor high-temperature increases creeping in this Saturday, according to the National Weather Service. Coastal dwellers and valley residents can expect "gradual warming inland through Sunday" with Sunday's heat expected to hit "5-9 degrees above normal inland." Yet, those closer to the sea won't have their hair curl too much as "the persistent marine layer will keep temperatures west of the mountains closer to normal," the NWS forecast indicates.

However, not all areas will escape a raincoat requirement, with "a slight chance of showers over the San Bernardino and Riverside County mountains this afternoon and evening." The usual suspects of morning low clouds and fog will continue to loom over some coastal spots, though the weekend promises a conquest of clearer skies. Despite the chances of showers, meteorologists at the National Weather Service forecast "highs a few degrees below normal," ensuring the overall weather retains an element of Spring's cool kiss.

Aviation buffs and travel enthusiasts must note that marine low clouds affect visibility, leading to "local VIS 1-4 miles will occur in BR, mainly in the valleys through 16Z, with local terrain obscurations in clouds." The advice from the Area Forecast Discussion is to expect clearer conditions in the valleys between 16Z-18Z, and a somewhat reluctant clearance closer to the coast between 18Z-21Z.

For mariners setting out to sea, smooth sailing should be the day's theme. "No hazardous marine conditions are expected through Tuesday", ensuring the weekend warriors can drop anchor without fear of tumultuous seas, per NWS. And while weather spotters aren't on high alert, those in the Skywarn network might want to keep their eyes on the skies in the face of ever-so-fickle mountain weather predictions.