Current forecast models from the National Weather Service show a moderating marine layer and persistent onshore flow from the cool Pacific likely capping daytime heating in Los Angeles on May 18, favoring highs clustered around 70–73°F. Ensemble guidance indicates light winds and partial stratus cloud cover that restrict boundary-layer mixing, while recent subsidence from the early-May heat wave has eased, preventing stronger warming. Minor differences in forecast wind speed or cloud timing could shift outcomes between the closely matched 70–71°F and 72–73°F bins. Historical May averages near 74°F provide context, though coastal locations often run 2–4°F cooler under similar synoptic patterns. Updated model runs expected later today will refine these probabilities ahead of resolution.