Forecast models for Chengdu on August 12 indicate a daily maximum in the mid-to-upper 30s Celsius, driven by typical Sichuan Basin summer conditions where subsidence and terrain trap heat under high pressure. Recent ensemble guidance from agencies such as the China Meteorological Administration shows peaks near 35–36 °C, with limited cloud cover or scattered showers potentially capping or boosting readings by 1–2 °C. Historical August climatology places average highs around 32–34 °C, but heat-wave episodes frequently exceed 37 °C. Market-implied odds cluster tightly around 36–38 °C because small differences in model timing, boundary-layer moisture, or urban heat-island effects can shift the observed peak across resolution thresholds. Updated short-range runs expected within the next 24–48 hours will refine this range.