Southern California Heat Advisory, Humidity to Last Thursday

A heat advisory remains in effect through Thursday along with a chance of thunderstorms in certain areas

A heat advisory remains in effect through Thursday at 9 p.m. for much of Southern California and thunderstorms are possible in certain areas of the region on Tuesday and Wednesday, according to the National Weather Service.

Desert areas will experience dangerous heat levels on Tuesday with a high of 100 degrees and a low of 71. Palm Springs is expected to reach a high of 109 degrees. The valleys and Inland Empire can expect a high of 93 degrees and a low of 63. Los Angeles and Orange County will see a high of 83 degrees and a low of 65. Mountain temperatures will reach a high of 85 degrees and a low of 49. Beaches will see a high of 72 degrees and a low of 62. 

According to the National Weather Service, “Under normal conditions, these temperatures would not necessitate any heat products. However, given the current influx of visitors and numerous outdoor events across the county, there is a higher risk for heat related problems especially given that humidities will be higher than normal.”

A South Coast AQMD particulate pollution advisory also remains in effect for the Boyle Heights area through 12:30 p.m. on Tuesday after a fire at a Lineage Logistics warehouse broke out on June 17, causing a potentially harmful ammonia leak. The fire is still burning nearly a week later, though the L.A. Fire Department hopes to fully extinguish it by the middle of this week, according to KTLA. An air quality alert is also in place for the area through Tuesday at 1 p.m.

Most areas in Southern California will see a 10% chance of rain on Tuesday and Wednesday. Thunderstorms are possible for both desert and mountain areas with a 20% chance.

The heat is expected to cool down by Thursday, but temperatures and humidity levels will remain above average through the weekend.

The National Weather Service recommends Californians take extra precautions if spending time outside and remain hydrated to avoid the risk of heat exhaustion and heat stroke.