This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Benito Juárez International Airport Station in degrees Celsius on 7 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=mmmx 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.
Trader consensus shows tight clustering around 21–23°C for Mexico City’s maximum temperature on September 7, reflecting genuine short-term forecast uncertainty typical of the late rainy season. Official guidance from Mexico’s National Meteorological Service and global models highlights variable afternoon convection and cloud cover that can cap daytime heating by several degrees, while the city’s 2,240-meter elevation and urban heat island create localized microclimate differences. Recent model runs place the most likely outcome near 22–23°C under partly cloudy conditions, yet modest shifts in moisture advection or timing of showers could favor 21°C. Updated ensemble guidance and satellite observations overnight will provide the next key data points before market resolution.