Downtown Los Angeles started Sunday on a deceptively pleasant note, with clear skies and cool early-morning temperatures near 55°F. That relief will not last long. Forecasters expect a quick warmup, with highs around 90°F in inland neighborhoods and the San Fernando Valley and gusty northeast winds through the afternoon. A Heat Advisory and wind concerns could turn midday outdoor plans into a grind, especially for runners and anyone without easy access to air conditioning.
Afternoon Heat and Winds
The National Weather Service Los Angeles/Oxnard has posted a Heat Advisory for coastal and inland sections of Los Angeles County from 10 a.m. to 6 p.m. Sunday, warning of temperatures climbing into the low 90s and a heightened risk of heat illness for sensitive groups. Strong offshore northeast winds are expected to reach advisory levels in many mountain, valley, and coastal corridors, with gusts that could reach the 30s to 40s mph range. That will make it feel even hotter and may kick up blowing debris in exposed areas, so hanging around outside in the middle of the day is not exactly a low-risk hobby. The advisory details come from the National Weather Service, Los Angeles/Oxnard.
Marathon And Outdoor Plans
The ASICS Los Angeles Marathon is rolling ahead Sunday with its stadium-to-Century City course starting at Dodger Stadium and drawing more than 26,000 runners, so race organizers and broadcasters will be paying very close attention to the forecast. If you are running or cheering, your safest bet is to aim for the earliest corral start you can, drink plenty of water, and dial back hard exertion during the 10 a.m. to 6 p.m. advisory window. Organizers have posted final race information and the full course map, available through The McCourt Foundation.
Heat Safety Tips
Lightweight, loose-fitting clothing is your friend on a day like this. Carry water, and, if possible, push outdoor chores or long runs into the early morning or later evening hours. Check on neighbors who might struggle in the heat, never leave people or pets in cars, and keep an eye out for heat illness. Symptoms of heat exhaustion and heat stroke can include dizziness, heavy sweating, a fast heartbeat, or confusion. If you or someone nearby starts to feel off, move to a cool spot immediately and call 911 for any emergency symptoms.
Short-Term Outlook
The warm, dry pattern should ease Monday as onshore flow returns and highs drop into the low 70s for many coastal and valley locations, with morning clouds becoming more likely. Do not get too attached to the cooldown, though. A warming ridge is expected by midweek, bringing another warm spell Wednesday and Thursday, when inland highs could again climb into the upper 80s and low 90s. Keep checking updated forecasts and try to shift outdoor work or workouts to the cooler parts of the day whenever you can.
