Stay Cool In La Mesa Amid Growing Heat Wave: Find Your Cool Zone

LA MESA, CA — Thursday was another hot summer day in San Diego County as extreme heat lingered across inland areas and deserts.

In San Diego County, a heat advisory was in effect through 8 p.m. on Thursday in the mountains, valleys, and deserts, where temperatures could reach 100 degrees.

In the San Diego County deserts, temperatures could broach 119 during this current event, meteorologists said.

Find your 2025 Cool Zone Sites here:

• Carlsbad: Carlsbad City Library, 1775 Dove Lane,
• Encinitas: San Diego County Library Encinitas Branch, 540 Cornish Drive,
• La Mesa: Christian Science Reading Room, La Mesa, 8370 La Mesa Boulevard,
• Oceanside: Oceanside Public Library, Mission Branch, 3861 B Mission Avenue,
• San Diego: San Diego County Library (any branch),
• Santee: San Diego County Library Santee Branch, 9225 Carlton Hills Boulevard #17.

Those at high risk include:

• Infants
• Young children
• Older adults
• People with chronic medical conditions

Also, remember to beat the heat:

• Drink plenty of water.
• Check on friends and neighbors at high risk for heat-related illnesses.
• Find air-conditioned places to cool off, like shopping malls and libraries.
• Never, ever leave kids or pets in a closed, parked vehicle for any length of time.

Temperatures are expected to return to near normal by Friday, with further cooling into Saturday, except in the deserts.

The relief will be welcome for San Diegans, but it bears a reminder that summer has arrived and is here to stay.

With that in mind, local cool zones have been established across the county, providing places where you and your pets can go to cool off during the heat of the day, especially if your home lacks a functioning air conditioner.