Recent short-term weather model runs position Shanghai’s August 2 maximum temperature near 35–37 °C, consistent with the market’s strongest implied probabilities on those outcomes. Subtropical high pressure and southerly flow are expected to sustain clear to partly cloudy skies, allowing strong daytime solar heating over the urban heat island, while typical August humidity keeps overnight lows near 27 °C. Ensemble guidance shows modest spread around the daily peak, reflecting small differences in boundary-layer mixing and any late-day sea-breeze influence from the East China Sea. Historical climatology places early-August maxima around 32–34 °C, so current forecasts represent slightly above-average warmth. Updated model runs and official China Meteorological Administration briefings over the next 24 hours remain the key catalysts that could shift the narrow 35–37 °C window.