Trader sentiment for the lowest NYC temperature on June 15 centers on ensemble model guidance from NOAA and European centers projecting overnight lows in the mid-60s°F, driven by mild southwesterly flow, limited radiational cooling under partly cloudy skies, and typical early-summer humidity levels that moderate minimums near Central Park’s official station. The 30.5% implied probability on 66–67°F and 18.5% on 64–65°F reflect this consensus, while the spread across adjacent bins captures remaining uncertainty from possible timing shifts in any weak frontal boundary or variations in boundary-layer mixing. Historical June climatology (average low near 62–65°F) provides context, but short-range model runs remain the dominant near-term driver ahead of final observations.