As a result, numerous agencies are working together to open Cool Centers during high heat temperatures that are expected from June through October. The centers -- which provide water, snacks, and activities -- especially target individuals like the elderly who are more susceptible to harm from excessive heat.
Experts recommend that people drink plenty of water to prevent dehydration, carefully plan outdoor activities, and avoid direct sunlight. They also caution against leaving children, elderly, disabled individuals, and pets in inside vehicles.
A heat warning is usually issued when temperatures are expected to reach 97 degrees or higher for at least three consecutive days.
Although San Bernardino County looks like it will also be heating up over the next few days, the National Weather Service has not forecasted temperatures of 97 degrees or higher for the next three to five days in that area.
29 cooling centers have been open since last month in Imperial County where temperatures have been well above 100 degrees for most of May and June.
The Centers for Disease Control and Prevention have a guide on how to protect yourself from extreme heat.