Excessive Heat Warnings, Watches Expected as Heat Wave Moves Into SoCal

Very warm temperatures are expected to stick around even after the sun sets

By Samantha Tata
|  Thursday, Jun 27, 2013  |  Updated 8:02 AM PDT
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Record-setting temperatures are expected this week, so hikers and runners were out early in the San Bernardino area. Jacob Rascon reports for

Record-setting temperatures are expected this week, so hikers and runners were out early in the San Bernardino area. Jacob Rascon reports for "Today in LA" on June 27, 2013.

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Excessive heat warnings are slated for Southern California as the region braces for its first heat wave of the summer -- a blast of hot weather that is expected to continue into next week.

The mercury is expected to climb into the 100s this weekend, with temperatures pushing 112 degrees in portions of the Inland Empire. An excessive heat warning has been issued for the valleys of Riverside and San Bernardino counties starting 10 a.m. Saturday until 8 p.m. Sunday, according to the National Weather Service.

Starting 10 a.m. Friday until 8 p.m. Sunday, an excessive heat warning is also slated for the Coachella Valley and the mountains of San Bernardino and Riverside counties.

Tips to Keep Pets Cool | Safely Exercise in the Heat | NBC4's Free Weather App | Send Weather Pics to isee@NBCLA.com

Temperatures are expected to reach upwards of 108 degrees at elevations below 4,000 feet.

An excessive heat watch for the Los Angeles County mountains, excluding the Santa Monica range, plus the cities of Lancaster and Palmdale will start Friday morning and last until Monday evening.

All other cities in LA County will be under an excessive heat watch starting Saturday morning through Monday evening.

Very warm temperatures are expected to continue after the sun sets. The warmest locations likely will feel minimum temperatures in the 70s and lower 80s during the nighttime hours.

Exceedingly high temperatures can cause heat-related illness or even death. Children, the elderly and people with chronic ailments are most susceptible to heat-related illness, including heat exhaustion, cramps or, in extreme cases, heat stroke.

Anyone working or playing outside is advised to take extra precautions, and reschedule strenuous activities – like working out – to the early morning or evening, when it’s cooler.

Residents are urged to drink plenty of fluids, stay in air-conditioned spaces and out of the sun, and check up on relatives and neighbors.

For a list of cooling centers in Los Angeles County, click here.

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