Temperatures began to fall slightly Friday, but humidity and monsoonal moisture will be on the rise for the next couple days, bringing sticky and hot conditions to many areas of the Southland, along with a chance of thunderstorms.
And the weather will get even hotter next week.
With temperatures dropping slightly, heat advisories for inland coastal areas, including downtown Los Angeles, along with the Santa Clarita, San Fernando and San Gabriel valleys that were expected to be in place until Tuesday morning will instead expire at 8 p.m. Friday. But the advisories will be reinstated starting at 10 a.m. Sunday, continuing until 10 a.m. Tuesday.
A separate heat advisory covering the San Gabriel Mountains and the Golden State (5) and Antelope Valley (14) freeway corridors will remain in place through 10 a.m. Tuesday, with temperatures expected to near triple digits.
When those advisories expire Tuesday morning, they will be replaced by an extreme heat watch that will remain in effect through Thursday evening and cover virtually the entire Southland, including the Malibu coast and L.A. County beaches.
Forecasters noted that the typically hottest valley areas could see temperatures of up to 112 degrees next week, with coastal areas potentially reaching 95 degrees.
“There is a high risk for dangerous heat illness for anyone, especially for the very young, the very old, those without air conditioning, and those active outdoors,” according to the NWS.
Although temperatures fell slightly on Friday from Thursday’s peak heat, forecasters said rising moisture and humidity will increase the potential of storms this weekend.
“Monsoon shower and thunderstorm potential is on track with a 5-10 percent chance as early as Saturday night, increasing to 10-20 percent Sunday into much of next week,” according to the National Weather Service.
Temperatures will then spike upward early next week, with forecasters warning of potentially dangerous heat conditions, “with the monsoonal moisture adding to the discomfort from the heat.”
Forecasters also warned that a south-to-southwest swell affecting local beaches through next week could increase the risk of rip currents and contribute to minor coastal flooding during periods of high tide.