**Forecast models from sources including WeatherBug, Worldmeteo, and Chinese meteorological outlets converge on a minimum temperature of 25–27°C for Shanghai on August 25, 2026, with most guidance centering on 26–27°C.** This narrow range aligns directly with the market’s leading outcomes of 27°C (47.5%) and 26°C (34.5%), as traders incorporate the latest model runs showing stable warm, humid conditions under partly to mostly cloudy skies with light or scattered precipitation. Late-August climatology in Shanghai features modest diurnal ranges (typically 5–8°C) driven by high humidity, southeast monsoon flow, and frequent cloud cover that limits nighttime radiative cooling. Current steering patterns and the subtropical ridge maintain above-average warmth, with no cold-air intrusions or strong frontal passages expected in the next 48 hours. Official and ensemble guidance consistently place the daily minimum in the early-morning hours, reinforcing the 25–27°C band. Recent data shifts have been minimal; updated runs have not introduced significant cooling or warming signals, keeping implied probabilities tightly clustered. Key upcoming catalysts include the next cycle of high-resolution model output and any revised local forecasts from the China Meteorological Administration, which could refine the exact minimum before resolution.