Numerical weather prediction models from the China Meteorological Administration and international ensembles have converged on a daily maximum of 28°C for Wuhan on May 17, driven by light southerly flow beneath a modest subtropical ridge that supports modest daytime heating under partial cloud cover. This tight model agreement underpins the market-implied odds favoring exactly 28°C, consistent with typical May climatology for the region where highs average near 27–29°C absent strong frontal passages or clear-sky amplification. Traders assign near-certainty to this outcome because short-range forecasts show limited variability in steering patterns or insolation through the afternoon observation window at Wuhan Tianhe International Airport. Only unexpected clearing or a late shift in boundary-layer moisture could realistically push the peak to 29°C or higher before resolution.