This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Adolfo Suárez Madrid-Barajas Airport Station in degrees Celsius on 6 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=lemd 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.
Latest numerical weather prediction models, including GFS and ECMWF runs, point to a peak temperature near 36–37°C in Madrid on September 6 under a stable high-pressure regime with light southerly winds, minimal cloud cover, and dry air advection that favors strong daytime heating. Current conditions reflect an early-September warm spell, with recent afternoons reaching 34–37°C and historical averages for the date around 29°C, though urban heat island effects at measurement sites like Retiro Park can add 1–2°C to official readings. Model spread remains modest, with slight differences in boundary-layer mixing and exact timing of peak insolation driving the tight market clustering between 36°C and 37°C. Updated high-resolution runs and official AEMET guidance expected over the next 48 hours will likely refine the maximum before resolution.