This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Paris-Le Bourget Airport Station in degrees Celsius on 3 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=lfpb 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.
Forecast models from Météo-France and international ensembles indicate a daily high of 27°C in Paris on September 3 under mostly cloudy conditions, light westerly winds, and minimal solar heating, producing the market’s 99.6% implied probability for that exact outcome. Official guidance consistently shows afternoon temperatures peaking near 27°C with little deviation expected before evening cooling. This consensus aligns with September climatology for the region, where highs near 26–28°C are typical absent strong high-pressure anomalies. A realistic shift could occur if unexpected clearing increases insolation or if observational data from the official Paris station records a slightly different peak due to microscale variability or measurement timing.