Highest temperature in London on August 18?
- Will the highest temperature in London be 22°C or below on August 18?6¢
- Will the highest temperature in London be 23°C on August 18?9¢
- Will the highest temperature in London be 24°C on August 18?23¢
- Will the highest temperature in London be 25°C on August 18?32¢
- Will the highest temperature in London be 26°C on August 18?22¢
- Will the highest temperature in London be 27°C on August 18?9¢
- Will the highest temperature in London be 28°C on August 18?3¢
- Will the highest temperature in London be 29°C on August 18?1¢
- Will the highest temperature in London be 30°C on August 18?<1¢
- Will the highest temperature in London be 31°C on August 18?<1¢
- Will the highest temperature in London be 32°C or higher on August 18?<1¢
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 London City Airport Station in degrees Celsius on 18 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 London City Airport Station, available here: https://www.wunderground.com/history/daily/gb/london/EGLC. 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 Met Office forecasts and ensemble model runs for London on August 18 point to a daytime maximum near 26°C under mostly cloudy skies, following moderation after earlier August peaks above 30°C. This aligns with the market's close clustering around 24–26°C, where subtle differences in predicted cloud cover, wind speeds from the east, and Atlantic high-pressure influence create the narrow probability bands. Official guidance highlights limited solar heating and potential for light showers, tempering any rebound toward 27°C or higher while making sub-24°C outcomes less likely absent stronger frontal activity. Updated model runs and Met Office briefings over the next 48 hours will refine these variables ahead of resolution.