**Forecast consensus points to a minimum temperature in the mid-to-upper 60s°F for New York City on August 26, 2026, aligning with the market's heaviest concentration of probability on 66–67°F (43%) and 68–69°F (32.5%).** National Weather Service and private model guidance issued August 25 show overnight lows in the 64–68°F range under partly to mostly cloudy skies with light southerly flow after an initial northwest breeze. This setup limits strong radiative cooling compared with clear, calm nights, while recent days' readings (e.g., Central Park lows of 63–67°F) provide a climatological baseline near the long-term August average of ~67°F. Higher-probability bins cluster here because ensemble spreads and short-range model runs have not diverged substantially, keeping the chance of sub-64°F or 70°F+ outcomes low (combined under 10%). Minor upward revisions in some guidance reflect increasing cloud cover and humidity that could moderate overnight drops, but no major atmospheric shifts—such as stronger cold advection or widespread clearing—are expected before sunrise on the 26th. Traders are therefore pricing the outcome around the most likely observed minimum rather than tail scenarios.