Forecast models from sources including Open-Meteo, GFS, and national agencies show Shanghai's October 11 high temperatures clustering around 25–26°C under partly cloudy skies with light northerly winds and minimal precipitation. This autumnal pattern, driven by a building high-pressure ridge and seasonal cooling from higher latitudes, limits daytime heating while preventing sharp drops. Historical October averages near 24–25°C provide context, with current runs showing little model spread or rapid changes expected overnight. Market-implied odds reflect this tight clustering, with 26°C holding a modest edge over 25°C amid minor variations in local station readings and slight warming potential if cloud cover decreases more than anticipated. Updated forecasts tomorrow morning will refine the exact peak before resolution.