San Diego wakes up under a gray blanket this morning, with clouds and about 61°F at San Diego International, but the day is headed in a very different direction. Coastal spots will creep into the low 70s this afternoon while inland neighborhoods cook under much hotter temps. A shallow marine layer will keep beaches cool and foggy in the mornings, even as valleys and deserts heat up until tomorrow.
Foggy Mornings, Sunny Afternoons
Today, expect mostly cloudy skies early, with low clouds clearing back to the coast by late morning and a high near 71°F. Tonight (Sunday night), patchy fog could roll in after 11 PM, with a low around 58°F. Tomorrow starts with spotty morning fog, then turns partly sunny and warmer away from the water. Winds stay on the mild side out of the west to southwest, generally 0–10 mph along the coast and in the valleys.
Heat Risk Inland Through Monday
The warming trend peaks tomorrow, when inland valleys and the lower deserts run about 10–20°F above normal and some desert spots push into the 104–109°F range. The National Weather Service has parts of the region under heat alerts, including a Heat Advisory for portions of the Inland Empire and an Extreme Heat Warning for the Coachella Valley and San Diego County deserts through tomorrow evening. Plan ahead if you will be outside. If you live or work away from the immediate coast, try to schedule heavy outdoor activity for early morning or evening and check on vulnerable neighbors and pets.
Where To Cool Off
If you need a break from the heat, the City of San Diego maintains a Places to Cool Down list, and the county's Cool Zone program links to libraries, community centers and other air-conditioned sites. Dial 2-1-1 for the nearest option and possible transportation assistance. Bring plenty of water, avoid midday exertion and remember that pets and outdoor workers need extra care on hot afternoons.
Heading Into Midweek
Forecast guidance points to a cooldown starting Tuesday as an area of low pressure moves in and the marine layer deepens. That should mean more morning clouds and cooler afternoons later in the week. Conditions are expected to stay dry, but the temperature gap between inland areas and the coast will return once the marine layer thickens again, according to the National Weather Service.
.jpg){kind=link}