**Forecast consensus points to a minimum near 21°C for Wuhan on September 12, 2026, amid closely matched market odds that reflect residual model uncertainty rather than divergent signals.** Multiple official and private forecasts (including China Meteorological Administration-derived products, AccuWeather, and PredictWind) converge on overnight lows of 20–22°C under mostly clear to partly cloudy skies, with highs in the 29–32°C range. This places the outcome squarely in the middle of the listed specific-temperature buckets while leaving room for modest shifts from the latest model runs. Primary drivers include a stable high-pressure ridge promoting clear skies and moderate radiative cooling overnight, combined with light northeasterly winds (generally <3–5 m/s) that limit mixing but also prevent strong cold advection. Recent northerly flow has lowered humidity slightly, supporting somewhat greater nighttime temperature drops than in the humid summer baseline, yet not enough for sharp cooling. Historical September climatology for Wuhan shows typical minima around 20–22°C, so current guidance aligns with seasonal norms rather than extremes. The near-even split between the 24°C+ and 14°C-or-below buckets (48.5% vs. 45.5%) captures the inherent uncertainty in short-range minimum-temperature forecasts, where small changes in cloud cover, boundary-layer moisture, or urban heat-island effects can alter the low by 2–3°C. Upcoming evening model updates and any new observational data on wind or humidity will likely tighten the range before resolution. Traders are pricing in this narrow but real envelope around the 20–22°C cluster rather than outlier scenarios.