Downtown Los Angeles is waking up cool and gray this morning, around 53°F with patchy fog hanging over the streets. The calm will flip fast, with highs set to climb into the 80s later today and a much hotter stretch lining up for the end of the week.
Heat Advisory And Timing
The National Weather Service has issued a Heat Advisory for coastal and coastal-valley zones, in effect from 10 a.m. Thursday through 8 p.m. Friday. Forecasters are calling for widespread daytime highs in the 90s and warning of an elevated risk of heat illness for vulnerable people. Residents are urged to drink plenty of fluids, avoid long stretches of outdoor activity during the hottest hours, and check on neighbors who may not have air conditioning, according to the National Weather Service Los Angeles/Oxnard.
Foggy Mornings, Sunny Afternoons
Patchy coastal fog should linger through midmorning before burning off to sunshine and a warm afternoon. Downtown and nearby inland neighborhoods are expected to top out near 80°F today. Light west-southwest winds this morning should ramp up to around 5 to 10 mph by afternoon, which will help speed the inland warm-up once the marine layer clears.
What To Expect This Week
Temperatures jump sharply on Thursday and Friday. Many inland and valley areas are expected to land in the mid to upper 90s, close to 96°F on Thursday and near 98°F on Friday, with some coastal spots even pushing into the low 90s. The heat is expected to linger into next week, raising the odds of record or near-record temperatures and prolonged heat stress in neighborhoods that usually stay cooler.
How To Stay Cool
Keep water within reach, limit outdoor exertion between 10 a.m. and 8 p.m., and never leave children or pets in parked cars during hot hours. If you do not have air conditioning, LA County maintains an interactive cooling-center map and hotline. Call 2-1-1 or visit Ready LA County to find nearby locations and hours.
If you have outdoor plans, try to shift them earlier or later in the day and be ready for only modest overnight relief, with lows mostly in the upper 50s to mid 60s. We will update if advisories expand or if local agencies upgrade the situation.
