Downtown Los Angeles woke up Tuesday, July 7, to patchy morning fog and a cool but muggy start, sitting at roughly 63F around first light. That gray marine layer is expected to thin by mid-morning, trading in the low clouds for sunny afternoons that climb into the mid-80s.
Heat Advisory From Wednesday Through Friday
The National Weather Service has issued a Heat Advisory from 10 a.m. Wednesday, July 8, through 8 p.m. Friday, July 10, covering the Los Angeles County inland coast, including Downtown LA. Forecasters expect daytime highs in the upper 80s to around 90F and warn of an elevated risk of heat illness for sensitive groups, according to NWS Los Angeles/Oxnard.
Foggy Mornings, Sunny Afternoons
Patchy low clouds and coastal fog are expected to linger overnight and into many mornings, especially near the beaches and adjacent valleys, but should burn off by late morning most days. For more on this same warm-up pattern and how it has played out recently, see June gloom turns steamy.
Where It Will Be Hottest
The hottest afternoons are expected Wednesday and Thursday. Many inland valleys are forecast to climb to 100F or higher, while the Antelope Valley could reach 105F to 107F. Downtown should be milder but still sticky, with highs mainly in the mid-80s to upper-80s, according to local forecast guidance from NWS Los Angeles/Oxnard.
What Angelenos Should Do
Officials suggest taking ordinary heat precautions: drink plenty of water throughout the day, avoid long or strenuous outdoor work between roughly noon and 6 p.m., and check on older neighbors, young children, or anyone who might struggle in the heat. If you need a cool place to spend a few hours, you can call 3-1-1 or head to a city library or recreation center. A common downtown option is the Los Angeles Central Library at 630 W. 5th St.
Marine And Wind Notes
Boaters and mariners should keep an eye out for Small Craft Advisories and a chance of gale-force gusts near Point Conception and the Channel Islands this week. Sundowner winds could also kick up along southwest Santa Barbara County in the evenings. Morning fog may slow coastal commutes as well, so allow extra travel time and keep water on hand if you are out on the road.
