Temperatures are expected to heat up to unseasonably warm highs Monday, March 24, reaching around 90 degrees in some areas of Southern California.
Across the region, meteorologists predict temperatures will peak Monday, cool down a bit Tuesday and return to normal by Wednesday.
Highs Monday are expected to be in the 70s near the coast in Orange County and reach the 80s in inland parts of the county. Inland Empire highs are expected to be in the upper 80s and low 90s, said Brandt Maxwell, a meteorologist with the National Weather Service in San Diego.
Across L.A. County, highs are expected to stay between the low 80s and low 90s, on average about 10 to 20 degrees higher than normal temperatures at this time of year, said Devin Black, a meteorologist with NWS L.A. Overnight into Tuesday, temperatures will cool to the 40s and 50s in the most areas, with lows in the 60s for some cities in the hills.
There’s a low to moderate risk of heat-related illnesses on Monday, with specific concerns for sensitive groups, including young children, older adults, people without air conditioning and anyone who has to spend long periods outside.
The weather service recommends everyone stay hydrated, wear light clothing and schedule outdoor activities outside the hours of 10 a.m. to 6 p.m. Anyone who has to work outside should take frequent breaks in air conditioning or shade.
On Tuesday, temperatures should cool slightly, with highs in Orange County ranging from the high 60s and 70s in the coastal areas, and highs in the 70s and 80s inland. The Inland Empire is expected to see highs in the mid-80s, with some areas experiencing a high of 91 degrees, Maxwell said.
High temperatures in Los Angeles County are expected to drop about five degrees from Monday.
Temperatures should cool to seasonable highs by Wednesday. Highs are expected to be in the 60s in coastal Orange County and the low 70s further inland. In the Inland Empire, highs should stay around the mid to upper 70s.
Coastal parts of L.A. County are expected to stay in the 60s, while most inland parts of the county should be between 70 and 80 degrees.