Official National Weather Service forecasts for downtown Los Angeles project a Tuesday high near 76°F, driven by a persistent marine layer and moderate onshore flow that limits daytime heating along the coast. Ensemble guidance shows strong agreement on this range, with minimal inland warming expected to reach the official measurement site before sea breezes strengthen. This aligns with the market's heaviest positioning at 76-77°F, reflecting traders' assessment of typical mid-July coastal suppression versus warmer historical baselines near 83°F. An extreme heat watch covers inland valleys, but marine influences and forecast model consensus keep probabilities concentrated in the mid-70s for the city proper, with final NWS updates expected overnight.