Short-term forecast models indicate a likely daily maximum of 34–35°C for Guangzhou on August 15, consistent with the closely matched market-implied odds at those levels. In the region’s subtropical monsoon climate, peak temperatures are modulated by high humidity, urban heat island effects, and intermittent thunderstorm activity that can suppress daytime heating through cloud cover and evaporative cooling. Recent model runs show minor variability tied to the timing and intensity of convective showers, with historical August baselines around 31–34°C and occasional spikes above 35°C under clearer, more stagnant conditions. Updated guidance from regional meteorological agencies over the next 48 hours will likely refine these probabilities ahead of resolution.