**Trader sentiment for Shanghai's June 16 low temperature centers on short-range forecast consensus around 22–23°C, reflecting the ongoing East Asian monsoon (meiyu or plum rain) period.** This season brings persistent cloud cover, light rain or showers, and high humidity that moderates overnight radiative cooling, keeping minimum temperatures close to seasonal norms of 21–24°C rather than allowing sharper drops. Current model guidance from sources such as timeanddate and BBC Weather points to overnight lows near 22–23°C (72–73°F) under overcast skies and gentle southerly breezes on June 16, with light precipitation further limiting temperature swings. AccuWeather’s extended outlook similarly shows overnight values clustered between roughly 22–25°C through mid-June. The tight spread between the leading market outcomes (23°C at 35%, 22°C at 29%, 24°C at 21%) mirrors small differences among ensemble members regarding exact cloud thickness, timing of any showers, and boundary-layer moisture, all of which influence how much the surface cools after sunset. No major synoptic shift is expected before the date, so probabilities remain anchored to these near-term dynamical and statistical guidance updates.