Los Angeles County is experiencing another day of sharply contrasting weather on Monday, July 27, with relatively comfortable conditions near the coast but potentially dangerous heat across inland valleys and desert communities.
Central Los Angeles is forecast to remain sunny and warm, while temperatures in parts of the San Fernando Valley, Santa Clarita Valley and Antelope Valley could approach or exceed triple digits. Heat alerts remain active for several inland areas through Monday evening.
Residents traveling across the county should prepare for substantial temperature differences. A drive from the beaches to the northern valleys could mean encountering conditions that are more than 20 degrees warmer.
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How Hot Will Los Angeles Get Today?
Downtown Los Angeles is expected to reach approximately 88°F to 92°F under mostly sunny skies. Overnight temperatures are forecast to fall into the upper 60s, offering some relief after sunset.
Areas closer to Los Angeles International Airport and the coastline will be cooler. Temperatures near LAX are expected to peak around 81°F, with patchy morning fog possible before skies become mostly sunny.
The hottest conditions will remain farther inland. Some communities in the San Fernando and Santa Clarita valleys could reach the upper 90s or low 100s during the afternoon.
In the Antelope Valley, including Lancaster and Palmdale, temperatures could rise to approximately 104°F. Breezy conditions may also develop during the afternoon and evening, especially in exposed desert locations.
Heat Advisory Continues Until Monday Evening
A Heat Advisory remains in effect until 8 p.m. PDT Monday for several Los Angeles County valleys and mountain areas. The affected region includes communities such as Santa Clarita, Valencia, Newhall, Van Nuys, Northridge, Chatsworth, Pasadena and El Monte.
The National Weather Service expects afternoon temperatures in some advisory areas to reach between 97°F and 107°F. The combination of intense daytime heat and limited overnight cooling can increase the risk of heat exhaustion and other heat-related illnesses.
Older adults, young children, outdoor workers and people without reliable access to air conditioning face the greatest risk. Residents are advised to drink water regularly, reduce strenuous outdoor activity and spend time in air-conditioned locations when possible.
Children and pets should never be left inside parked vehicles, even for a brief period. Interior vehicle temperatures can rise rapidly during warm and sunny weather.
Coastal Areas Stay Cooler
Communities along the Los Angeles County coast will avoid the most extreme temperatures because of the marine influence and afternoon sea breeze.
Morning low clouds or fog may affect beach communities and areas near LAX before gradually clearing. Afternoon conditions should become mostly sunny, with temperatures generally remaining in the upper 70s or low 80s.
The cooler coastal weather should provide some relief for residents seeking to escape inland heat. However, beach visitors should continue to use sun protection because ultraviolet exposure can remain high even when air temperatures feel mild.
No Significant Rain Expected
No meaningful rainfall is expected across the Los Angeles area Monday. Central and inland locations should remain mostly sunny, while coastal neighborhoods may experience brief morning cloud cover.
Dry conditions are forecast to continue through the middle of the week. Downtown Los Angeles is expected to remain in the upper 80s Tuesday and Wednesday, while coastal areas should stay several degrees cooler.
Drivers could encounter reduced visibility where morning fog develops near the coast. Otherwise, widespread travel disruptions related to weather are not anticipated.
Another Warming Trend Is Ahead
Temperatures may ease slightly in some inland areas after Monday’s heat alerts expire, but the break may not last long.
The broader Los Angeles forecast indicates highs near 88°F through Wednesday, followed by a stronger warming trend toward the end of the week. Central Los Angeles could reach the low 90s by Friday and Saturday, while inland valleys may again experience significantly hotter conditions.
Forecast temperatures and advisories can change quickly, particularly during prolonged heat events. Residents should continue checking local forecasts before planning outdoor work, exercise or travel.
Staying Safe During the Heat
People in the hottest parts of Los Angeles County should schedule physically demanding activities during the morning or evening whenever possible. Light-colored clothing, regular hydration and frequent breaks can reduce the risk of heat-related illness.
Symptoms such as heavy sweating, weakness, dizziness, nausea or headache may indicate heat exhaustion. Anyone experiencing confusion, loss of consciousness or an unusually high body temperature may be suffering from heat stroke and requires immediate emergency assistance.
Pets should also have continuous access to shade and clean drinking water. Pavement can become dangerously hot during the afternoon and may burn animals’ paws.
For Monday, the most important weather story is the wide divide between the coast and inland Los Angeles County. While beach communities remain relatively mild, valley and desert residents face another afternoon of potentially dangerous heat.
