San Diego Braces for Cooler Weather and Marine Layer After Brief Warm Spell

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San Diego's weather forecasts a temporary warm trend followed by midweek cooling and possible marine layer clouds.

As we lean into another working week, there's a subtle shift in the weather that'll have San Diegans reaching for cardigans by nightfall and basking in slightly above-average inland temperatures during the day, at least until the cool down hits midweek. According to the National Weather Service San Diego, coastal areas can expect maximums ranging from 64 to 72 degrees Fahrenheit today, climbing gradually as you head inland, with deserts looking at the mid-'80s to high '80s.The upward trend isn't here to stay though, as temperatures near the coast will dip slightly, with a forecast of 64 to 71 degrees for Monday, and inland spots will follow suit, going from 71 to 79 degrees in the valleys and up to 92 in the deserts, though these readings are still about 5 degrees above normal, "Dry and warmer through early next week with high temperatures near to around 5 degrees above normal inland by Monday," quotes the National Weather Service.

This warmth is temporary; a gradual cooling trend commences Tuesday through Saturday, and along with it, a depth-charging marine layer that'll bring night and morning low clouds and fog more widespread by midweek. "Gradual cooling follows Tuesday through Saturday," per the National Weather Service. A strengthening of afternoon and evening winds is also on the docket, targeting the mountains and deserts later in the week.



Skies have been clear, but few patches of low clouds are starting to hug the coast, not quite committed to a full embrace this time around they might sneak into coastal areas briefly later today, by Wednesday morning though the marine layer should cast a wider net enriching the inland valleys with low clouds, bringing with it the possibility for patchy morning drizzle and more breezy westerly winds that develop each afternoon and stretch into the late evening across the more elevated and open spaces.What's offered to us from nature in terms of potential rainfall looks slim this week – precipitation chances have plummeted to below 5%, with the NWS ensemble leaning towards a drier conclusion, so those hoping for a few raindrops might be left wanting. Looking ahead, the weekend weather is teasing a cooler touch with high temperatures expected to dip about 3-5 degrees below normal, underscoring the pattern of deepening marine layers and perpetuating the presence of those nighttime and dawn low clouds blanketing the areas west of the mountains.

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