TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 6, 8:00 AM EST
Polymarket
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 6 Jul '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.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 6 Jul '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.
This market resolves around Jul 6, 2026, once the highest temperature recorded in London on July 6 is verifiable from credible public reporting. The outcome will be confirmed against official meteorological records, ensuring all traders are judged against the same factual standard. Until that date, prices may fluctuate as forecasts update and traders reassess their positions based on emerging weather patterns and atmospheric conditions.
Several catalysts could shift odds significantly before resolution. Major weather model updates—especially from the European Centre for Medium-Range Weather Forecasts or the UK Met Office—often trigger repricing when they show stronger or weaker heat signals. Seasonal climate patterns, such as the North Atlantic Oscillation or jet stream positioning, can influence July temperatures weeks in advance. Real-time atmospheric developments, heat waves in nearby regions, or anomalous pressure systems will also drive trader conviction. As July 6 approaches, intraday forecasts and actual early-July weather will become the dominant price drivers.