Recent forecasts indicate persistent cloud cover and precipitation over Guangzhou on September 4, with moderate to heavy rain and thunderstorms expected to suppress daytime heating and cap maximum temperatures below the seasonal average of roughly 32–33 °C. Multiple models, including those from Yr, WeatherBug, and Met Office, converge on highs of 27–29 °C amid northwest winds of 4–10 mph and humidity above 70 %, while some runs project even lower values near 25 °C if rainfall arrives earlier or intensifies. This spread across closely matched market probabilities for 27–31 °C reflects genuine uncertainty in the timing and coverage of convective activity. Updated model runs and official observations from the China Meteorological Administration in the next 48 hours will likely refine the peak temperature ahead of market resolution.