Trader consensus strongly favors a 23°C low for Shenzhen on October 7, 2026, driven by consistent numerical weather prediction outputs from models such as GFS and ECMWF, corroborated by official Shenzhen Meteorological Bureau guidance. Clear to partly cloudy skies under northeasterly flow at 5–10 m/s have promoted moderate radiative cooling overnight, with hourly observations and forecasts converging on a minimum near 22–24°C between 05:00–07:00 local time, aligning precisely with the 23°C threshold. Historical October climatology for the Pearl River Delta shows typical minima of 21–24°C, providing additional context for the market-implied odds. A realistic shift below this level would require either unforecasted clear-sky enhancement of longwave radiation loss or station-specific microclimate effects, while warmer readings remain unlikely given the established boundary-layer stability.