Labor Day Heat Advisory Issued for Pasadena and Greater Los Angeles Region Amid Triple-Digit Forecasts

A heat advisory remains in effect for Pasadena and surrounding areas beginning Monday morning, with temperatures expected to soar as high as 106 degrees, according to the National Weather Service in Los Angeles/Oxnard.

Pasadena is expected to top out at 102 on Labor Day and 103 on Tuesday.

The advisory, issued early Saturday, warns of dangerously hot daytime conditions and warm overnight lows across much of Los Angeles County, including the San Gabriel Valley.

The alert is scheduled to remain in place from 10 a.m. Monday through 6 p.m. Tuesday, though forecasters noted it may be extended through Wednesday depending on evolving conditions.

The National Weather Service cautioned that high temperatures ranging from 96 to 106 degrees are likely across inland valleys and foothill communities, including Pasadena, Glendale, Burbank, and La Cañada Flintridge.

The agency said that sensitive populations — including children, older adults, individuals without access to air conditioning, and those engaged in outdoor labor — face elevated risks of heat-related illness.

“Limit strenuous outdoor activities to the early morning hours,” the advisory stated. “Stay in air-conditioned spaces during the heat of the day. Check up on relatives and neighbors.”