This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Shanghai Pudong International Airport Station in degrees Celsius on 8 Sep '26. The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zspd If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source. In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket. To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C. This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first. The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Recent forecasts from multiple meteorological sources indicate Shanghai's maximum temperature on September 8 will likely reach 29–30°C under partly cloudy to overcast skies with light northerly winds and a modest chance of showers. Model consensus points to sufficient daytime heating for the upper end of that range, yet increased cloud cover and potential precipitation could cap readings near the lower threshold, creating the tight market split between these two outcomes. Historical September averages for the city hover around 28–29°C, providing context for why traders see limited probability mass beyond 31°C or below 28°C absent a significant shift in steering patterns or moisture. Updated model runs and official briefings in the final hours before the observation window will likely determine the precise resolution.