Southern California hits hottest day of its extreme heat warning

Southern California remains under an extreme heat warning as residents brace for the hottest day of the week on Wednesday.

“It will be roasty toasty in the valleys, lower mountain elevations and far interior, with highs ranging from 100 to 110 degrees,” the National Weather Service said. The warmest conditions are expected in the western San Fernando Valley.

An extreme heat warning remains in effect for much of Southern California until 8 p.m. Thursday. Forecasters say there is a high risk of heat-related illness for anyone outdoors for extended periods. Heat advisories are also in place for areas along the coast.

“Highs for today: 98 in Ojai, 100 in Ontario. Temecula, good morning to you, 100 degrees expected there. 112 in Palm Springs. Unbelievably hot,” KTLA’s Kirk Hawkins said Wednesday morning.

Residents are urged to adjust their afternoon plans to limit strenuous outdoor activities during the heat of the day, stay hydrated and check in on elderly neighbors and loved ones.

The Weather Service said record highs are slightly warmer than those forecast for Wednesday. As a result, despite the extremely hot conditions, few, if any, temperature records are expected to be broken.

A few degrees of cooling are expected Thursday, but a more significant cooldown will arrive Friday as onshore winds increase.

Afternoon highs are expected to cool even more over the weekend, with below-average temperatures possible in some areas.