Marine layer persistence and onshore flow from the Pacific are the dominant factors capping Los Angeles highs near 80–82 °F on August 2, even amid a regional heat dome. National Weather Service guidance and ensemble models indicate afternoon temperatures at representative stations like KLAX or downtown will peak in the low 80s, with limited inland penetration of the warmest air mass due to the marine inversion. This aligns with trader consensus reflected in the 53.5 % implied probability for 80–81 °F and 30.5 % for 78–79 °F. Recent model runs show minimal warming trend from August 1, while historical August climatology places normal highs near 84 °F, underscoring how coastal moderation is overriding broader above-normal signals from NOAA outlooks. Updated NWS briefings and afternoon model cycles remain the key near-term catalysts for any shifts.