This market will resolve based on the lowest 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 lowest temperature recorded at the Paris-Le Bourget Airport Station in degrees Celsius on 15 Aug '26. The resolution source for this market will be information from Wunderground, specifically the lowest 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 forecasts from Météo-France and ensemble models indicate an overnight minimum near 19–20°C for Paris on August 15, driven by a post-heatwave cooling trend, increased cloud cover, and scattered thunderstorms that limit radiative cooling while advecting cooler maritime air. These conditions align with the market's strong preference for 22°C or below, reflecting historical August climatology where average lows range 15–18°C yet current model consensus places the minimum well below the 22°C threshold. Traders appear to weigh the high probability of measurable cooling against residual urban heat-island effects that could nudge readings slightly higher, with fresh model runs expected from the National Weather Service equivalents before resolution.