Excessive heat warning extended for Los Angeles County

The National Weather Service extended its excessive heat warning for Los Angeles County an extra day on Monday. 

This is the second time the agency has extended the warning, as meteorologists expect the triple-digit temperatures to last until at least Tuesday night. 

The grueling heat wave started last Wednesday and brought record-setting temperatures to many parts of the County, including Burbank, which tied its daily, monthly and all-time highs of 114 degrees. 

NWS meteorologists expect similar "dangerously hot conditions," with highs on Monday reaching anywhere between 100 and 110 degrees. They expect Tuesday to be marginally better, with 93 to 103 degrees common throughout the county. While the region typically sees relief from the heat in the evening, temperatures are expected to stay very warm through Monday night.

The agency was highly confident that this would be the last extension and that all heat-related warnings would end Tuesday night.

In the meantime, like with every heat warning, officials advised everyone to stay hydrated, use air conditioning whenever possible and stay in the shade as long as possible. Never leave a child or pet in an unattended car, as temperatures could rise to lethal levels within minutes. 

For the past five days, nearly 31 million people in California, Nevada and Arizona have endured abnormally high temperatures. 

The heat strained LA County's power grid, causing outages at nearly 110,000 homes in the region. 

The concerns of outages cutting power to air conditioners during the heat wave prompted LA Unified School District officials to shift over a dozen schools to a minimum day schedule.