Recent National Weather Service model guidance and ensemble runs indicate the minimum temperature in New York City on August 31 will likely fall in the low 70s, driving the market's tight split between the 70–71°F and 72–73°F bins. A warm, humid air mass under light southwesterly flow, combined with increasing cloud cover and scattered showers, is suppressing radiational cooling and holding overnight lows several degrees above the 1991–2020 climatological average of 66°F. Forecast uncertainty centers on the exact timing and coverage of any showers, which could produce minor variations in the final observed low depending on wind speed and dewpoint persistence. Updated short-range model runs and official National Weather Service briefings in the next 48 hours represent the key data points that could shift trader consensus before resolution.