California heat wave: Potential record-breaking heat to strike on holiday weekend

The Fourth of July holiday weekend is set to be a scorcher in Southern California with some areas expected to reach triple-digit heat.

Meteorologists with the National Weather Service said the first heat wave of the summer is expected to strike on Saturday and Sunday, and will impact the desert and mountain communities, along with the interior valleys.

Areas in Riverside and San Bernardino counties will be most impacted by the heat wave, including areas such as Palm Springs, Victorville, Ontario, and Lake Elsinore.

A Heat Advisory goes into effect at 11 a.m. Saturday in the Inland Empire valleys, including the cities of Riverside, San Bernardino, Ontario, Moreno Valley, Rancho Cucamonga, and Corona. The weather alert remains in place through 8 p.m. Monday. 

It will also heat up in Los Angeles County in the San Fernando, Antelope, and Santa Clarita valleys. 

An Excessive Heat Warning goes into effect at 10 a.m. Saturday and remains in place through 8 p.m. Wednesday in the Santa Clarita Valley, Western Antelope Valley, Eastern Antelope Valley Foothills, and the Antelope Valley. 

Afternoon highs will be in the 90s and 100s, also bringing elevated fire danger. Residents and tourists are asked to limit their time outdoors and stay hydrated.

For those who live are plan to head to the coast, temperatures will remain moderate due to a marine influence.