**Persistent marine layer and onshore flow are capping coastal heating in Los Angeles, positioning 78–79°F as the market favorite (51.5% implied probability) for the August 10 daily high, followed by 76–77°F (28.5%).** National Weather Service discussions and recent observations at Los Angeles International Airport (KLAX, the typical resolution station) show a deep marine layer—often 1,400–1,500 feet—producing patchy dense fog, low clouds, and gradual afternoon clearing under moderate southwest winds. This pattern has kept recent daily highs in the mid-70s, well below the August climatological average of ~84–85°F. Model consensus and current guidance indicate similar conditions for August 10, with limited intensification potential and no significant offshore flow or upper-level ridging to allow greater warming. Traders have priced in this established regime, reflected in the tight clustering around the upper 70s and very low probabilities for 82°F+. Minor day-to-day variability in marine-layer depth or clearing timing could nudge the outcome between the two leading bins, but the overall setup strongly favors temperatures remaining in the 76–79°F range. Updated NWS forecasts and marine layer analyses on August 9–10 will be the key near-term catalysts.