Marine layer influence and a moderating sea breeze from the Pacific are capping peak temperatures in coastal Los Angeles on August 13, keeping the official high in the mid-70s range rather than the seasonal average near 84°F. Recent model runs show limited daytime heating under partly cloudy skies with southwest winds of 5–10 mph, consistent with post-heatwave conditions that favor onshore flow over strong inland warming. The near-even split between 74–75°F and 76–77°F reflects minor uncertainty in the exact timing of maximum insolation versus marine air intrusion at the resolution station, while higher bins remain low-probability given the stable atmospheric setup. New National Weather Service observations through the afternoon will refine the final reading.