Recent forecasts from Chinese meteorological agencies and global models indicate persistent cloud cover and moderate rainfall over Guangzhou on October 3, driven by a weak cold air front and lingering monsoon influences, which favor daily highs near 30–31 °C. These conditions suppress peak temperatures relative to clearer periods earlier in the week, aligning with the closely matched market-implied odds for 31 °C and 32 °C. Key variables differentiating these outcomes include the precise timing and intensity of showers, which can limit solar heating, versus localized urban heat island effects in central districts that may allow brief spikes. Model consensus shows limited spread beyond this range given the autumn transition and moderate humidity levels near 70–80 %. Updated runs from the China Meteorological Administration and ECMWF over the next 24–48 hours will likely refine the maximum temperature trajectory.