Sun on hot day
Photo courtesy National Weather Service

A dangerous heat wave will continue to grip San Diego County valleys, mountains, and deserts through the weekend and into next week.

An excessive heat warning will be in effect until 8 p.m. Saturday in the San Diego County deserts, with temperatures potentially reaching 120 degrees, and in the mountains, where the mercury could rise to 105 degrees at elevations below 5,000 feet, according to the National Weather Service.

“Extreme heat will significantly increase the potential for heat-related illnesses, particularly for those working or participating in outdoor activities,” NWS forecasters warned. “Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water.”

A less severe heat advisory will be in effect until 8 p.m. Saturday in the San Diego County valleys, although temperatures there could still reach 102, forecasters said.

“Hot weather will continue in the valleys, mountains, and deserts through the weekend,” according to the NWS. “A brief surge of monsoonal moisture Sunday and Monday will bring mid-level clouds and a slight chance of afternoon thunderstorms to the mountains and high deserts. The marine layer will continue to moderate the heat near the coast. Hot weather will continue through most of next week.”

–City News Service