TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 5, 8:00 AM EST
Polymarket
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 5 Jun '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 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.
Prediction market odds reflect real-money consensus from traders betting on London's lowest temperature on June 5, while meteorological forecasts from weather agencies and climate analysts rely on atmospheric modeling and historical data. Markets often incorporate analyst predictions but may diverge based on trader sentiment and risk appetite. Comparing the two reveals whether the crowd is pricing in more or less extreme outcomes than professional forecasters expect, offering insight into market confidence versus institutional expertise on this specific weather event.
On Polymarket, the lowest temperature in London on June 5 is priced through outcome tokens representing different temperature ranges or thresholds. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders buy and sell these tokens based on their belief in each outcome's likelihood, with token prices reflecting implied probabilities. The market uses an automated market maker or order-book mechanism to determine prices in real time. As new information emerges—such as seasonal forecasts or atmospheric patterns—prices adjust to reflect updated trader expectations for London's minimum temperature on that date.
The market resolves on Jun 5, 2026, after the lowest temperature in London on June 5 has been recorded and verified. The outcome is determined by official temperature data for that day, establishing which outcome token holders predicted correctly. Resolution occurs once the reference data source confirms the minimum temperature reading, settling all positions and distributing winnings to holders of the correct outcome token. This ensures the market reflects actual weather conditions rather than forecasts.
Major weather pattern shifts, seasonal climate anomalies, and updated meteorological forecasts can significantly move odds for London's lowest temperature on June 5. Atmospheric blocking patterns, jet stream positioning, and large-scale pressure systems weeks in advance influence long-range temperature expectations. Traders also react to historical temperature records, climate indices like the North Atlantic Oscillation, and any unusual solar or volcanic activity affecting global temperatures. As June approaches, shorter-range forecasts become more precise, typically reducing uncertainty and stabilizing prices closer to the actual outcome.