Recent National Weather Service forecasts for coastal Los Angeles highlight a persistent marine layer and onshore flow that are moderating daytime highs for August 13, keeping temperatures in the mid-70s rather than allowing typical August warming. Official guidance shows patchy fog transitioning to partly cloudy conditions with highs near 74–76°F at key observation sites like LAX, consistent with the market’s leading 76–77°F bin at 49.5% implied probability. This setup reflects climatological patterns where coastal stratus suppresses maximum temperatures, and recent model runs have not indicated significant warming or offshore flow shifts that would push readings into the upper 70s or beyond. Traders appear to weigh these stable marine influences heavily ahead of final observations.