Current forecast models from agencies like China's National Meteorological Center point to a peak high of 35–37°C in Guangzhou on August 19, with scattered thunderstorms and high humidity expected to modulate daytime heating. Subtropical monsoon conditions, including moist southwesterly flow and variable cloud cover, create uncertainty around maximum solar insolation and any late-day convective cooling. Traders assign the highest implied probabilities to 36°C and 37°C because ensemble guidance shows only modest day-to-day variability in the 850-hPa temperatures and boundary-layer mixing, while historical August extremes rarely exceed 38°C without a strong ridge. Upcoming model runs and official 48-hour updates will likely refine whether any clearing allows a 37°C reading or persistent showers cap the day near 35°C.