Recent National Weather Service and model guidance highlight persistent marine layer influence and moderate onshore flow as the main drivers keeping Los Angeles International Airport highs in the mid-to-upper 70s for August 11, aligning with the market's tight clustering around 76-79°F. Daytime cloud cover and a shallow marine inversion limit solar heating, while sea surface temperatures near normal for the season suppress further warming despite broader August climatology favoring 84-85°F peaks. Ensemble spreads remain modest, with limited upside risk from any late-day clearing or offshore wind shift that could push readings toward 80°F. Updated short-range forecasts and morning soundings will provide the final inputs before resolution.