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 17 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.
Current forecasts from Météo-France and complementary models project a daily maximum of 28–30 °C in Paris on August 17, with the most probable peak near 29 °C under partly cloudy skies and light northerly flow. This positioning reflects a modest cooling trend following the mid-August heat episode, as a weakening ridge allows slightly fresher Atlantic air to moderate temperatures. Ensemble guidance shows limited spread around these values, supporting the market’s heavy weighting toward 29 °C (54.5 %) and 28 °C (25 %). The resolution station at Paris-Le Bourget will record the official high, and any late-model shift in cloud cover or wind could nudge the outcome within the narrow 27–30 °C range already priced by traders.