National Weather Service forecasts and ensemble models for downtown Los Angeles point to a moderate high on August 9 driven by persistent marine layer influence and onshore flow that limits inland heating, keeping readings near seasonal norms around 84°F. Recent heat advisories through the evening reflect elevated coastal and valley temperatures earlier in the period, but latest guidance shows modest cooling that aligns trader consensus with the 78-79°F bin at 45.5% implied probability. Key resolution criteria center on the official NWS observation at the downtown site, with minimal upside risk from offshore warming or model shifts before tomorrow’s peak.