Recent forecasts for Shanghai indicate overnight lows near 26–27°C on July 11, consistent with typical mid-July conditions after the plum rain season ends. High humidity, scattered thunderstorms, and variable cloud cover introduce modest cooling potential overnight while limiting radiative heat loss, keeping minimums clustered around these values. Model guidance shows close agreement on daytime highs near 30–32°C but diverges slightly on exact nighttime minima depending on precipitation timing and wind patterns. Traders assign the highest implied probabilities to 26–28°C outcomes because historical July lows average 25–27°C and no major synoptic shifts, such as stronger onshore flow or clear-sky radiative cooling, are currently expected. Updated model runs and local observations in the next 48 hours will refine these thresholds.