Recent forecasts from multiple meteorological models indicate Shanghai's overnight low on September 28 will likely settle near 23–24°C amid persistent cloud cover, easterly winds, and periods of rain that limit radiative cooling. These conditions, tied to a regional weather system bringing showers and moderating temperatures, position 24°C as the market leader at 45.5% implied probability, followed closely by 25°C. Historical September baselines for the city average around 20–22°C at night, but the current pattern favors slightly elevated minima. Updated model runs and official guidance expected within the next 24–48 hours could refine this range ahead of market resolution.