Persistent heavy rainfall, extensive cloud cover, and northeasterly winds with humidity above 90% have suppressed daytime heating across Zhengzhou, driving forecast models from sources such as the BBC and timeanddate toward a maximum of 24–25°C on August 12. This deviates sharply from climatological August averages near 30–32°C because evaporative cooling and reduced solar insolation limit warming. Market-implied odds reflect this strong consensus, with 25°C at 99.5% probability. Realistic challenges include earlier-than-expected clearance of clouds or localized model biases in precipitation timing that could allow brief periods of stronger insolation and a higher reading.