TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 4, 8:00 AM EST
Polymarket
This market will resolve to the temperature range that contains the lowest temperature recorded at the Paris-Le Bourget Airport Station in degrees Celsius on 4 Jul '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 Paris-Le Bourget Airport Station, available here: https://www.wunderground.com/history/daily/fr/bonneuil-en-france/LFPB. 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 lowest temperature recorded at the Paris-Le Bourget Airport Station in degrees Celsius on 4 Jul '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 Paris-Le Bourget Airport Station, available here: https://www.wunderground.com/history/daily/fr/bonneuil-en-france/LFPB. 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 bets from traders worldwide, often incorporating meteorological forecasts, historical climate patterns, and emerging weather models. Unlike traditional analyst consensus, this market aggregates dispersed information through price discovery. Traders betting on whether the lowest temperature will be 21°C or higher are effectively making a probabilistic judgment that may align with or diverge from published forecasts depending on data freshness, model uncertainty, and market participant expertise in seasonal European weather patterns.
This market resolves around Jul 4, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution hinges on whether the lowest temperature recorded in Paris on July 4 meets or exceeds 21°C. Once official meteorological data is published and verified, the market will settle accordingly, paying out traders who correctly predicted the temperature threshold.
Major weather pattern shifts, updated seasonal forecasts, and anomalous atmospheric conditions in Western Europe could significantly influence trading. Heat waves, cold fronts, or unexpected jet stream behavior reported by meteorological agencies may prompt traders to reassess their positions. Additionally, historical temperature records for early July in Paris and real-time weather model updates closer to the event date will likely drive volatility. Market participants typically react to official forecast revisions and emerging climate data that affect confidence in the 21°C threshold.