Recent forecasts from multiple models indicate overnight lows in Guangzhou on August 22 will likely settle between 26–28°C amid scattered rain and thunderstorms, with persistent cloud cover and high humidity limiting radiative cooling. These conditions align closely with the historical average low of 25.4°C for the date while reflecting the current active monsoon pattern and elevated precipitation chances, which moderate temperature drops. Minor variations in model timing of rainfall and wind shifts explain the tight clustering of trader probabilities around 27°C, 28°C, and 26°C, as even small differences in overnight cloud cover or storm intensity can shift the minimum by 1–2°C. Updated runs from agencies like the China Meteorological Administration and global ensembles will provide the next key data points before resolution.