Triple-digit heat will continue throughout the week in Riverside County, with an excessive heat warning in effect Tuesday until at least 9 p.m. Friday in the Coachella Valley, Banning and Desert Hot Springs areas.
National Weather Service forecasters said temperatures of 115 to 122 degrees are possible in the affected area.
Another excessive heat warning will be in place from 11 a.m. Tuesday through 9 p.m. Thursday in the Riverside County valleys, which include the cities of Corona, Riverside and Moreno Valley. Those areas could see “dangerously hot conditions” with temperatures ranging from the upper 90s to around 110.
Temperatures in the deserts, mountains and eastern valleys ran slightly cooler Sunday due to low-level moisture and dew points in the 60s, according to the National Weather Service.
But things quickly heated back up, and according to the NWS, Tuesday and Wednesday will be the hottest days of the week. Temperatures are expected to exceed 100 degrees Tuesday through Friday in the city of Riverside.
Riverside County mountains will be under a heat advisory until 9 p.m. Thursday, with temperatures possibly reaching 104.
Meanwhile, in the desert, Palm Springs was expected to reach 121 on Tuesday. 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.
Similar highs were forecast for Coachella and Indio.
With heat-related illnesses on the rise, forecasters advised people to drink plenty of fluids, stay in air-conditioned room, to not leave young children or pets in unattended vehicles, and to check-up on those susceptible to the heat.
Air quality regulators issued a windblown dust advisory until 8 a.m. Tuesday in the Coachella Valley and eastern Riverside County, where high winds may result in unhealthy conditions for sensitive groups.