A record high was reported in Palm Springs and a heat advisory was in effect Monday until Wednesday in the Inland Empire, according to the National Weather Service.
Temperatures will be between 99 and 107 in the Riverside County valleys and Inland Empire with nighttime highs expected in the low 70s on Monday.
It was 92 in Palm Springs on Sunday, breaking the record for the day for the highest minimum temperature of 91 set in 2006.
City-operated cooling centers remain open at Demuth Community Center, James O. Jessie Desert Highland Unity Center and the Palm Springs Public Library. For more information, residents can visit EngagePalmSprings.com.
It was 69 in Idyllwild, breaking the record for the day for the highest minimum temperature of 65 set in 2022.
The highs in the Coachella Valley are expected to be between 111 and 115 on Monday.
“There will be dangerously hot conditions, with temperatures up to 117 degrees possible,” NWS forecasters said. “Drink plenty of fluids, stay in an air-conditioned room and stay out of the sun.”
Children and pets should never be left inside vehicles on days that are even a little warmer than normal, as cars can turn into death traps in mere minutes.
Highs in the Riverside metropolitan area were around 100 degrees on Sunday, while lows were generally hovering in the lower 70s.
In the Coachella Valley, daytime temps were between 110 and 120 degrees with overnight lows in the mid-80s into early next week.
The Temecula Valley experienced highs in the mid-90s Sunday and lows dropped into the mid-60s through next week, meteorologists said.