Traders see 26°C and 27°C as the most probable outcomes for Shanghai’s June 5 high, reflecting consensus from recent numerical weather prediction runs that anticipate persistent cloud cover and light precipitation associated with the early meiyu season. These conditions typically suppress daytime heating compared with clear-sky climatology, keeping maxima near the long-term June average of 27°C while limiting the chance of reaching 28°C or higher. Official guidance from agencies such as the China Meteorological Administration highlights model agreement on modest southerly flow and increasing humidity, though small shifts in frontal timing or reduced cloud thickness could still produce a one-degree swing. The tight spread between the top two bins underscores the inherent uncertainty in 24–48-hour temperature forecasts for the region.