This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section. This market will resolve to the temperature range that contains the highest temperature recorded at the Paris-Le Bourget Airport Station in degrees Celsius on 14 Aug '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Paris-Le Bourget Airport Station, available here: https://www.wunderground.com/history/daily/fr/bonneuil-en-france/LFPB. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve until the first data point for the following date has been published on the resolution source. 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 Météo-France and ECMWF model consensus drives trader sentiment toward a peak of 38–39°C in Paris on August 14, reflecting persistent high pressure, weak winds, and clear skies that promote strong daytime solar heating with limited mixing. Ensemble spreads remain tight around the upper 30s, with only modest upside risk to 40°C if boundary-layer suppression intensifies, aligning with the market’s heavy weighting on those two outcomes. Official guidance issued in the past 24 hours has held steady amid the broader European heat dome, limiting volatility ahead of tomorrow’s official observation at the Paris-Le Bourget station.