Latest National Weather Service forecasts point to a highest temperature in Los Angeles on August 17 in the mid- to upper-70s Fahrenheit, driven by a persistent marine layer and moderate onshore flow that limits daytime heating along the coast. This setup, common in mid-August, brings stratus clouds and sea breezes that cap highs well below seasonal averages near 84°F. Model consensus shows gradual clearing but insufficient warming for an 80°F reading, aligning with recent observations of 76–78°F daily peaks at downtown and airport stations. Traders weigh these factors against potential afternoon clearing that could push readings into the low 80s if the layer thins faster than expected.