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: Jul 10, 8:00 AM EST
Polymarket
This market will resolve to the temperature range that contains the highest temperature recorded at the Malpensa Intl Airport Station in degrees Celsius on 10 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 Malpensa Intl Airport Station, available here: https://www.wunderground.com/history/daily/it/milan/LIMC. 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 Malpensa Intl Airport Station in degrees Celsius on 10 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 Malpensa Intl Airport Station, available here: https://www.wunderground.com/history/daily/it/milan/LIMC. 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 sentiment and broader market dynamics beyond raw weather models. While meteorologists rely on atmospheric data and historical patterns, this market aggregates the financial incentives of participants betting on the outcome. Analyst forecasts tend to be more conservative and model-driven, whereas prediction markets can react faster to breaking weather developments or shift in consensus. Comparing the two reveals whether traders are pricing in more bullish or bearish temperature scenarios than official forecasts suggest.
On Polymarket, traders set the odds through an automated market maker that adjusts prices based on buy and sell volume. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each temperature outcome is represented as a tradable contract, and the market price of each reflects the probability traders assign to it. As more capital flows into higher or lower temperature ranges, prices shift to rebalance supply and demand. This continuous repricing mechanism ensures the market stays responsive to new information and trader conviction throughout the event window.
This market resolves around Jul 10, 2026, once July 10 has passed and the highest temperature recorded in Milan that day can be verified. The outcome is confirmed against credible public sources reporting the official peak temperature. Traders holding shares in the winning temperature range receive their payout based on the final verified reading. Resolution typically occurs within hours of market close, allowing quick settlement and payout distribution to winning positions.
Major weather pattern shifts, updated seasonal forecasts, or unexpected atmospheric systems approaching Milan could significantly move odds in this market. Real-time meteorological alerts and changes to official weather outlooks often trigger sharp repricing as traders adjust their positions. Unusual heat waves or cold fronts developing in Europe may also influence trader sentiment weeks before the event. Social media discussion, news coverage of extreme weather elsewhere, and shifts in long-range models all serve as catalysts that can swing the market toward higher or lower temperature expectations.