- Will the highest temperature in London be 22°C or below on September 6?<1¢
- Will the highest temperature in London be 23°C on September 6?2¢
- Will the highest temperature in London be 24°C on September 6?7¢
- Will the highest temperature in London be 25°C on September 6?31¢
- Will the highest temperature in London be 26°C on September 6?44¢
- Will the highest temperature in London be 27°C on September 6?18¢
- Will the highest temperature in London be 28°C on September 6?4¢
- Will the highest temperature in London be 29°C on September 6?<1¢
- Will the highest temperature in London be 30°C on September 6?<1¢
- Will the highest temperature in London be 31°C on September 6?<1¢
- Will the highest temperature in London be 32°C or higher on September 6?<1¢
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 6 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=eglc 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 consensus from the Met Office points to a maximum of 26°C in London on September 6 under mostly sunny skies with light southerly winds. This setup favors daytime heating without significant cloud cover or precipitation, aligning with the market's leading 42.5% implied probability for exactly 26°C. Southerly flow advects milder air from the continent, while high pressure supports clear conditions after recent variable weather. Other models show minor spread, with some indicating 24–25°C if cloud increases or 27°C if heating exceeds expectations, reflected in the 31% and 18% probabilities for those outcomes. Official updates from the Met Office and ECMWF runs will refine the precise peak before resolution.