Traders assign the highest implied probabilities to 38°C and 37°C peaks because official forecasts and ensemble models from agencies such as the China Meteorological Administration currently project mid-August maximums in that range for Chongqing under persistent subtropical high pressure. The city’s basin topography and urban heat-island effect amplify daytime heating while high humidity slows nocturnal cooling, pushing observed highs 2–4 °C above regional climatological averages of 33–35 °C. Recent model runs show limited rainfall expected on the 16th, reducing evaporative cooling and supporting the market’s clustering around 37–38 °C rather than cooler outcomes tied to monsoon intrusions. Resolution depends on the official daily maximum recorded at the primary surface station; any late-model shift toward stronger southerly flow or afternoon convection could tilt probabilities toward the lower-probability 36 °C or 39 °C bins.