Recent National Weather Service and model guidance indicate a persistent marine layer and onshore flow will moderate highs across Los Angeles on September 4, favoring readings near the 76–79 °F range that currently dominate trader probabilities. This pattern aligns with early-September climatology, where the seasonal average high at Los Angeles International Airport stands near 77 °F, while inland sites can reach the low 80s under clearer conditions. Forecasts show morning low clouds and fog clearing to mostly sunny skies with southwest winds of 10–15 mph, limiting daytime heating without introducing significant offshore flow or upper-level ridging that would push temperatures higher. Minor model spread in the strength of the marine inversion keeps 74–75 °F and 80–81 °F outcomes in play but at lower implied odds. Updated NWS briefings and afternoon model runs over the next 48 hours will provide the clearest signals ahead of market resolution.