Excessive Heat Warning Extended In Ramona Amid Heat Wave

RAMONA, CA — An excessive heat warning was extended for Ramona as a heat wave is expected to last through most of the workweek in San Diego County.

High pressure over the southwestern U.S. will usher in the scorching temperatures through at least Thursday, according to the National Weather Service. An excessive heat warning is in effect until 10 p.m. Thursday in the county's valleys, mountains and deserts, which includes Ramona.

"Extreme heat will significantly increase the potential for heat-related illnesses, particularly for those working or participating in outdoor activities," weather officials warned.

High temperatures Monday are forecast to reach 82 degrees near the coast, 90 inland, 94 in the western valleys, 103 near the foothills, 103 in the mountains and 119 in the deserts, according to the National Weather Service. Monsoonal moisture could cause thunderstorms Monday afternoon in the mountains.

High temperatures in the deserts are expected to dip to 116 on Tuesday before rising to 117 on Wednesday, the National Weather Service said. Highs in the western valleys are forecast to top out in the mid-to-high 90s through Wednesday, while highs near the foothills could remain in the triple digits through at least Thursday.

To stay safe during the heat wave, weather officials urged residents to drink plenty of fluids, stay out of the sun and check up on relatives and neighbors. Children and pets should be never be left unattended in a vehicle, with car interiors able to "reach lethal temperatures in a matter of minutes," the National Weather Service said.

Anyone overcome by heat should be moved to a cool and shaded location, officials advised. Call 911 immediately for heat-related illness.

City News Service and Patch editor Kristina Houck contributed to this report.