San Diego residents can expect a shift in the weather pattern as high pressure weakens and cooler temperatures arrive for the weekend. This change will lead to highs on Sunday, with much cooler temperatures this weekend, at or below normal. A weak Santa Ana wind is also anticipated to develop by Monday, bringing warmer conditions to coastal and valley areas while cooling the inland, according to the National Weather Service in San Diego.
San Diegans waking up to early morning fog will find it increasing coverage into Sunday, but it's not just the coast that should prepare for changes; gusts of 35-45 mph will hit mountain areas later in the weekend, so you may want to secure any loose items, inland temperatures today are slightly above normal but will start to drop back down as an upper level trough moves in, considering these variable conditions, it's a classic Californian weather grab-bag. By Monday, offshore flow is expected to generate wind gusts of 30-45 mph, possibly hitting 50 mph near passes and canyons, per the Area Forecast Discussion from NWS.
As for precipitation, the outlook remains uncertain, with low confidence in the chances of light rain from Wednesday into Thursday. "There is a 20-35% chance of light precipitation Wednesday into Thursday," provided by the NWS San Diego's Area Forecast Discussion, indicating a noteworthy degree of unpredictability in whether the week will end wet or dry. Moreover, different ensemble weather models still can't agree on the precise direction of the approaching trough, which means forecasts might change.
Marine conditions are expected to be uneventful through Thursday, so local sailors and fishers might count this as favorable news, as follows a Friday that looks to be warmer and drier. As of now, weather spotters are not requested to activate Skywarn, but they are encouraged to report any significant weather conditions, in case the weather takes one of its notorious, swiftly moving twists that anyone who's spent enough time on the Pacific coast knows can happen at a moment's notice.
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