Trader consensus at 100% implied probability for a 28°C daily maximum in Wuhan on September 11 stems from official forecasts and real-time observations showing clear skies, light easterly winds, and peak afternoon temperatures reaching that threshold under typical late-summer subtropical conditions. Multiple meteorological sources, including hourly model runs, project a high of 28–29°C with minimal precipitation risk and stable high pressure, aligning with historical September baselines where daytime warming peaks before seasonal cooling. This positioning reflects aggregated trader assessment of verified data from monitoring agencies rather than speculation. A realistic challenge could arise only from localized measurement variance at the reference station or unforecasted cloud build-up suppressing insolation, though current model agreement leaves little room for deviation.