RIVERSIDE COUNTY, CA — The calendar may say fall, but summer-like heat will persist this week, with temperatures pushing into the triple digits throughout the Inland Empire, according to the National Weather Service.
The agency said that the Riverside metropolitan area and neighboring locations will enjoy a seasonal respite from Monday to Thursday, but after that, another round of sizzling heat will take hold, lasting until at least Sunday.
"High temperatures for next weekend will range from a few degrees above average for the lower deserts to as much as 12 to 18 degrees above average for the coast and valleys," the NWS stated Monday. "For Friday through Sunday, there could be several records tied or broken for record warm low temperatures, mostly for coastal and valley locations."
Forecasters said low pressure troughs spun out of Tropical Storm Odalys and Hurricane Polo near the Baja Mexico Peninsula will have lingering impacts, mostly in San Diego County, going into midweek. However, by Thursday, high pressure systems dropping out of the Great Basin of Nevada and Utah will begin to influence area weather patterns, ratcheting up the heat.
High temperatures in the Riverside area Monday to Wednesday will top out in the low 90s, but from Thursday to Sunday, the mercury will bump higher each day, peaking at or just above 100 degrees Friday to Sunday. The nighttime mercury will settle in the low 60s Monday to Wednesday, but overnight temps after that will hover in the low 70s, according to the Weather Service.
For the Coachella Valley, highs Monday and Tuesday will also peak in the low 90s, but the trajectory changes on Wednesday, with a 100-degree high possible in Palm Springs and surrounding locations, followed by low 100s going into the weekend, with lows generally in the low to mid 70s all week, according to meteorologists.
The Temecula Valley's daytime temps will be in the low to mid 80s Monday to Wednesday, followed by mid to upper 90s Thursday to Sunday. Lows until midweek will be around 60, followed by mid 60s Thursday to Sunday, according to the NWS.
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