San Diego is gearing up for a noticeable shift in the weather, with temperatures set to drop later this week. According to the National Weather Service San Diego, Thursday will introduce cooler weather, thanks to a low-pressure system. NWS San Diego projects temperatures ranging from the mid to upper 60s at lower elevations, with the mountains and high desert areas expected to reach 50s and 60s, and the low desert areas to have highs in the 70s.
Continuing this cooling trend, Friday is poised to be the week's chilliest with further temperature dips. As expressed in NWS San Diego's Area Forecast Discussion, "A closed low pressure system developing off the California coast on Wednesday will bring a chance of showers to southwestern California some time around late Thursday through Friday." This incoming system will precede the cooling, which might be accompanied by rainfall ranging from 10 percent near the coast to around 20 percent for the mountains.
The forecast for today has been notable for highs reaching 8 to 12 degrees above average for inland valleys, with temperatures spanning from 70 near the coast to the mid 70s and lower 80s in the valleys. Thanks to this high-pressure ridge, we've seen weak offshore flow and above-average warmth, which is set to reverse with the incoming low-pressure system. The marine layer is projected to thicken by early Wednesday, spreading fog and low clouds into coastal and some valley regions by early Thursday.
Looking further ahead, the weather is expected to dry up and warm over the weekend, "with high temperatures on Monday of next week a few to around 5 degrees above average," according to the forecast discussion. Snow levels, for those concerned, will hover around 6500 to 7000 feet in anticipation of the weekend's weather change. For aviators, the impactful weather includes patchy low clouds and fog, potentially touching coastal airports with bases 400 feet MSL and visibility 0-2SM.
The short-term forecast might prompt locals to grab an extra layer before heading out, whereas those planning for the weekend should anticipate drier, more typical Southern California weather. No hazardous marine conditions are projected through Saturday, which spells good news for those looking to spend some time on the water.
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