Current National Weather Service and ensemble guidance from the GFS and ECMWF models point to a mild overnight low in the mid-to-upper 60s °F for New York City on May 19, driven by high-pressure ridging that suppresses nocturnal radiative cooling under partly cloudy skies. This synoptic setup, typical for late-spring Atlantic ridging, keeps minimum temperatures above seasonal normals near 58–60 °F while limiting the potential for stronger cooling that would favor the 62–63 °F or lower bins. With forecast spreads remaining tight across recent model runs, the market-implied probabilities cluster tightly around 64–69 °F outcomes, reflecting trader assessment of the stable pattern through the short-range forecast window. Updated model guidance later today could refine the exact minimum if cloud cover or wind shifts alter the nocturnal boundary layer.