Traders see the highest temperature in Los Angeles on August 11 clustered tightly between 76–79°F because of uncertainty in marine layer depth and onshore flow strength overnight into the day. This cool, moist air mass forms over the California Current when warmer air encounters cooler ocean waters, creating a temperature inversion that limits daytime warming along the coast. Recent heat dome influences from late July have waned, allowing typical August marine layer persistence, while sea surface temperatures and local wind patterns will determine whether the layer mixes out enough for peaks near 78–79°F or stays shallow enough for 76–77°F. Official NWS guidance and model consensus on inversion height remain key variables ahead of the final measurement window.