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 Warsaw Chopin Airport Station in degrees Celsius on 20 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 Warsaw Chopin Airport Station, available here: https://www.wunderground.com/history/daily/pl/warsaw/EPWA. 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 short-range forecasts from agencies including the Met Office project a daily maximum of 23–24°C in Warsaw on August 20 under light southwesterly flow with scattered showers and variable cloud cover. These conditions support the market’s heaviest weighting on 24°C while allowing a secondary chance of 25°C or higher if daytime heating peaks before precipitation develops. Cloud timing and breaks in cover will determine whether insolation reaches levels needed for the upper end of the range, as reduced solar radiation under thicker clouds typically caps temperatures near the seasonal average of 23°C. Official observations tomorrow will resolve the outcome amid this narrow spread of model guidance.