California heat wave: Triple-digit temps expected over 4th of July holiday week

LOS ANGELES - As the Fourth of July weekend approaches, Southern California is bracing for yet another heat wave that could bring triple-digit temperatures to parts of the region. 

According to the National Weather Service, a large area of high pressure will bring hot conditions in the days leading up to the holiday, with temperatures gradually increasing by the end of the week. 

The heat is expected to peak on Friday and Saturday.

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This means there are elevated to brief critical fire weather conditions for much of the area starting Tuesday and lasting for the rest of the week, according to forecasters. 

Areas impacted include the Inland Empire, Antelope Valley, Central Coast, and southwest Santa Barbara County.

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As far as the heat goes, officials advise you to plan accordingly for outdoor events as the dangerous heat risk will affect most, especially the elderly, children, and those who are active outdoors.

Highs in the valleys and mountains could reach upwards of 108 degrees by Tuesday or Wednesday, increasing further towards the end of the week, while temperatures between 80 and 90 degrees will be common for coastal areas by Thursday or Friday, according to the NWS.

The San Fernando and San Gabriel valleys will see highs in the 90s all week, with Pasadena hitting 94 on Sunday and reaching 97 on Wednesday.

Downtown Los Angeles will be in the 80s throughout the week, but could reach 90 degrees Friday and Saturday.

Inland Orange County will similarly be in the 80s, with Anaheim Hills reaching the 90s by mid-week. That area will be under a heat advisory from 11 a.m. Friday through 11 p.m. Saturday, when temperatures of up to 100 degrees are expected.

Get the latest weather updates on foxla.com/weather.

City News Service contributed to this report.