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: Jun 4, 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 4 Jun '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.
On Polymarket, the Highest temperature in Milan on June 4 is priced as a set of outcome contracts, each representing a specific temperature range or threshold. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders buy and sell shares in each outcome, with prices reflecting the collective probability assigned by the market. The price of each contract moves between 0 and 1 cent (or equivalent) based on order flow and sentiment. As June 4 approaches, prices typically converge toward either 0 or 1 cent as uncertainty resolves, reflecting the market's confidence in which temperature outcome will occur.
The market resolves on Jun 4, 2026, after the highest temperature in Milan on June 4 has been recorded and verified. Resolution hinges on identifying which outcome bracket or threshold the actual daily high temperature falls into. Official meteorological data from recognized weather stations in Milan serves as the reference point. Once the final temperature is confirmed, the corresponding outcome contract settles to 1 cent and all others to 0, distributing winnings to holders of the correct outcome.
Several catalysts can shift odds for Milan's June 4 high temperature. Major weather pattern changes—such as shifts in Atlantic pressure systems, heat domes, or cold fronts—will trigger repricing as meteorological models update. Seasonal climate anomalies and sea-surface temperature trends in the Mediterranean influence trader expectations. Real-time weather forecasts released in the days leading up to June 4 often cause sharp probability swings. Additionally, historical temperature records for Milan in early June and any unusual atmospheric conditions reported by meteorologists can prompt traders to adjust positions, moving market odds toward new equilibria.