Current forecasts from multiple models indicate a dry, clear night for Beijing on October 2 with light winds and low humidity, supporting radiative cooling that typically produces a minimum near 12–13 °C—close to the 1991–2020 average low of 12.2 °C. Trader sentiment clusters around the 9 °C–12 °C thresholds because ensemble spreads in nocturnal boundary-layer cooling and slight variations in wind speed or cloud cover can shift the exact low by 2–3 °C. Historical records show October 2 extremes ranging from 2.5 °C to 17 °C, underscoring that small changes in high-pressure positioning or upstream cold-air advection remain the key variables that will determine whether the minimum settles above or below the tightly bunched market levels.