Current forecasts from the China Meteorological Administration and ensemble models including ECMWF and GFS indicate a daily high near 28°C in Guangzhou on May 18 under patchy rain and lingering cloud cover from a weakening subtropical ridge. This setup favors the leading 28°C outcome at 28.5% market-implied probability, followed closely by 27°C at 24.5%, as increased moisture suppresses the stronger heating seen in drier mid-May periods. Historical averages for the date hover around 29–30°C, yet recent observations show typical pre-monsoon variability where rainfall often caps extremes. Traders are monitoring the next model runs for any shifts in steering patterns or clearing skies that could push readings into the 29–30°C bands before resolution.