San Diegans can look forward to continued warm temperatures this week. After some potential low clouds and patchy fog early in the morning, the skies are expected to clear up, leading to a gradual warmup that has been ongoing over the past few days. As mentioned by NWS San Diego, temperatures are set to rise well above average by Wednesday, contributing to what is shaping up to be a particularly warm period for this time of year.
For those hitting the coast, Monday morning may present low clouds and localized dense fog. In contrast, the inland areas are expected to experience much warmer conditions courtesy of a positively tilted ridge hovering over the region. Inland highs could reach 10 to locally 20 degrees above normal from Wednesday through Friday. The reports from Area Forecast Discussion by the National Weather Service indicate that while the high deserts and mountain passes/canyons will encounter gusty winds later today and tomorrow, no hazardous marine conditions are expected through Friday despite the patchy morning fog along the coast.
As the week progresses, the marine layer is anticipated to return in the evenings, with the chance of patchy fog increasing along the coast and possibly extending inland. However, it's not all fog and cloudy mornings. The National Weather Service's detailed forecast promises sunny afternoons with highs around the low 70s, gently cruising to 74 degrees by the end of the work week.
The warm trend is slated to peak with Thursday and Friday hitting the highest temperatures, where certain areas like the Coachella Valley may even experience triple digits. However, by the weekend, this pattern is expected to shift, as a breakdown of the high-pressure ridge system could lead to lower temperatures and a return to seasonal norms. "By the weekend, ensembles do indicate that there will be a breaking down of the ridge and more troughing," states the Area Forecast Discussion, suggesting a cooler air system moving in to provide a respite from the heat.
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