**NWS guidance for New York City points to an overnight low near 68°F on June 28 under partly cloudy skies with light southeast winds becoming calm, supporting the market’s leading 68-69°F band.** This reflects limited radiational cooling amid moderate humidity and the urban heat island effect, which typically prevents deeper drops than surrounding rural areas. Nearby outcomes (66-67°F through 72-73°F) capture model spread in cloud cover, boundary-layer mixing, and subtle marine-layer influence from the Atlantic, which can raise minima by a degree or two. Late-June climatology favors lows in the mid-to-upper 60s, but recent forecast consistency around 68°F and the absence of strong cold advection have kept probabilities clustered rather than skewed toward extremes. Updated model runs tonight and tomorrow morning will refine these small but market-sensitive differences before resolution.