San Diegans can look forward to a slight reprieve from the heat as the National Weather Service (NWS) forecasts a cooler start to the week with a chance of light rain showers this morning. High temperatures today are expected to be a touch lower for some areas, with the possibility of thunderstorms building over the mountains and deserts in the afternoon through early evening, as reported by NWS San Diego. Despite the cooler temps, humidity will persist, so leave the sweaters home.
According to the Area Forecast Discussion by NWS, this monsoon pattern is forecasted to continue through midweek, with daily chances of showers and thunderstorms mainly concentrated over the mountains and eastern slopes. However, these weather patterns are set to wind down by the weekend, bringing about a cooling trend. Nevertheless, an "inverted V" sounding indicates the potential for dry microbursts, which may produce gusty outflow winds. There's even a slight chance for occurrences of a "heat burst," similar to a recent event, which could result in a sudden increase in temperatures within the inland valleys.
The detailed forecast for today includes a 20% chance of showers after 11 am and patchy fog before 8 am. By the afternoon, the weather is expected to clear up with mostly sunny conditions and a high near 79 degrees, while tonight will bring increasing clouds with a low around 67, as per the 7 DAY FORECAST.
Looking ahead to the weekend, the monsoon moisture should begin to confine itself further east. While an isolated thunderstorm could still develop over the mountains and deserts by tomorrow, a drying trend with fewer chances for storms is expected. The weather should clear up by the weekend, presenting mostly dry and sunny conditions. Marine layers will likely deepen and move further inland, creating more consistent onshore flows later in the week. Local mariners can breathe easily; no hazardous marine conditions are expected through Friday.
For those with a stake in the skies, the NWS has not activated Skywarn but encourages weather spotters to report significant conditions.
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