More triple-digit temperatures baked parts of the Los Angeles area Friday as a late-summer heat wave promises to stretch into the weekend, prompting an extension of some heat warnings through Sunday.

Extreme heat warnings issued by the National Weather Service had been expected to expire at 9 p.m. Saturday, but with the blistering conditions lingering, the agency extended the warning in some areas.

The warning will now be in place until 9 p.m Sunday in the Santa Clarita Valley, western Santa Monica Mountains Recreational Area, Calabasas, Agoura Hills, San Fernando Valley, San Gabriel Mountains, Antelope Valley, Antelope Valley Foothills, San Gabriel Valley and the Golden State (5) and Antelope Valley (14) freeway corridors.

Those areas could continue to see temperatures reaching as high

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