TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 8, 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 8 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 8 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 often diverge from traditional meteorological forecasts because they incorporate real-time trader behavior, media attention, and emerging data. While weather analysts rely on numerical models and historical patterns, this market aggregates the financial incentives of thousands of participants betting on the actual outcome. Comparing the implied probability here to official forecasts from services like Météo-France can reveal whether traders are pricing in more or less downside risk than experts expect, making the market a useful cross-check on consensus views.
On Polymarket, traders set prices by buying and selling outcome shares in an automated market maker (AMM) pool. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each temperature bracket has its own contract, and the cost to buy a share reflects the current probability assigned by the pool. As traders accumulate positions, prices shift to rebalance supply and demand, ensuring the market continuously reprices based on new information and shifting expectations about July 8's low temperature in Paris.
This market resolves around Jul 8, 2026, once July 8 has passed and the lowest temperature recorded in Paris that day is confirmed. The outcome is verified against credible public sources to determine which temperature bracket was correct. Traders holding shares in the winning bracket receive their payout, while losing positions expire worthless. Resolution typically occurs within hours of the market end time, once official temperature data becomes available.
Major weather pattern shifts, updated seasonal forecasts, and real-time atmospheric data releases can significantly move this market. Heat waves, cold fronts, or unusual jet stream behavior reported by meteorologists will trigger repricing as traders adjust their bets. Media coverage of extreme weather events, changes to long-range models, and even historical temperature records for July 8 in Paris may influence positioning. Close to resolution, intraday weather updates and satellite imagery become the primary drivers of last-minute trading activity.