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Climate & Environment

High temperatures, poor air quality and scattered wildfires hit Southern California this weekend

A pup lies in a blue kiddy pool.
Expect temperatures in the triple digits across much of inland Southern California, with temperatures in the 80s and 90s elsewhere.
(
Stephan Jansen
/
AFP via Getty Images
)

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Topline:

A heat advisory remains in effect across our region through tonight, with an excessive heat warning in the San Fernando Valley and desert areas.

Excessive heat warnings: As usual, it'll be warmer farther away from the coasts. Temperatures will be in the low 90s up to 100 in the San Gabriel Valley, San Fernando Valley, and Santa Monica Mountains. The Santa Clarita Valley, Antelope Valley, and much of the Inland Empire will be 104 to 111.

Heat advisory: The rest of the region is under a heat advisory. We'll see temperatures in the 80s to lower 90s in the Los Angeles area, and in the 80s along Orange County coastal areas.

Air quality: Much of urban Southern California is also under an air quality alert, made worse by the 4th of July fireworks.

High pressure over the area continues to bring significant heat to SW California. Highs from the coastal valleys to the deserts are expected to be up to 115 degrees in the hottest interior sections. Overnight low temperatures will also remain quite warm, exacerbating the excessive heat conditions. There will also be elevated to Red Flag fire weather conditions into he weekend, due to the hot temperatures, low relative humidity and breezy winds. Rapid fire spread will be likely any new fire starts. Use extra caution in the heat, and with any source of spark or flame!
The National Weather Service has issued these advisories for this weekend going into next week.
(
Courtesy National Weather Service
)

Red flag warning: There's an increased risk for fire danger for the I-5 corridor, western Antelope Valley foothills, Ventura County and Santa Barbara County mountains where gusty winds could quickly spread fire. Some of these areas could get up to 112 degrees.

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Go deeper: Here's some tips for keeping yourself cool (and your pets, too).

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