Jun 23, 2026
The National Weather Service has issued a heat advisory for LA County running through 9 p.m. Thursday, with Wednesday forecast as the hottest day and higher humidity compounding the heat-illness risk.
Why it matters: The advisory covers inland coastal areas and the valleys — Mar Vista's coastal position keeps daytime temps in the upper 70s–80s, but the elevated humidity is the variable that makes even that feel rough, especially for older residents and anyone without AC.