**Coastal marine layer influence and on-shore flow are anchoring trader expectations for a moderate high at Los Angeles International Airport (LAX) on August 5, 2026.** National Weather Service forecasts for the LAX area currently project a high near 77°F under mostly sunny skies, consistent with the market’s leading 76-77°F bin (41.5%) and nearby 74-75°F outcome (34%). Persistent marine stratus and the typical summer sea breeze suppress inland heat advection at the coastal station, keeping readings well below the broader basin or valley maxima that often exceed 85–90°F. Model consensus shows limited variability in the exact peak, with small differences in boundary-layer mixing or the timing of any afternoon clearing creating the tight spread across the 74–77°F range. Historical August LAX normals near 76°F and the absence of strong offshore winds or heat-wave signals in the current pattern reinforce this clustering. Upcoming NWS updates and morning sounding data will be the primary near-term catalysts for any shifts in implied probabilities before resolution.