San Diego heat wave: Potentially record-setting temperatures possible

Posted at 8:07 AM, Aug 29, 2017
and last updated 2017-08-29 11:32:33-04

SAN DIEGO (KGTV/CNS) - The scorching heat wave will continue to bake San Diego County Tuesday, with some record-high temperatures possible in parts of the region.

Tuesday and Wednesday are expected to be the hottest days of the week, and temperatures will remain well above average into next week, according to 10News Meteorologist Megan Parry.

As a public safety measure, an excessive-heat warning for the county's inland valleys, western foothills and deserts was extended through 10 p.m. Friday after it was initially slated to expire Wednesday. A less serious heat advisory will be in effect for local coastal communities over the same period.

Chula Vista, Ramona and San Diego could see record-setting temperatures on Tuesday.


Several desert and inland-valley locales logged afternoon highs in the triple digits Monday, including 114 degrees in Ocotillo Wells, 111 in Borrego Springs, 110 in Valley Center, 104 in Campo and 105 in Ramona, according to meteorologists. The latter community tied its record high for the date, set in 1981.

The maximum thermometer readings in a few other local areas, according to the National Weather Service, came close to topping the 100 mark -- 99 degrees in El Cajon and San Pasqual Valley; 98 in Alpine; and 96 in Escondido. Clouds, thunderstorms and scattered showers cooled things off for many inland communities later in the afternoon Monday.

Conditions were considerably more pleasant closer to the ocean, with temperatures ranging from the high 60s to high 70s near the waterfront, and up into the mid-80s a bit farther east.

Megan says monsoon moisture will make it feel even hotter, with possible pop-up showers or thunderstorms this week. While the best chance will be near the mountains, it's so tropical that they could form anywhere.

The public is being reminded to never leave children, seniors or pets unattended in cars; to drink more water than usual and avoid alcohol, sugar and caffeine; to wear lightweight and light-colored clothing and wide-brimmed hats outdoors; and to take frequent rest breaks in shaded or air-conditioned environments.