Highest temperature in Milan on July 26?

Platform comparison

Market context

At Malpensa Airport, the key question is whether the day’s maximum temperature lands in the market’s listed Celsius band by the settlement deadline, with the contract using Wunderground’s daily high for 26 July. The crowd is at **0% YES**, which is far below what a simple seasonal read would usually imply for late July in Milan, so the market is pricing an extremely low chance of a high enough reading rather than just an average summer day.

Comparable late-July temperature markets in Milan have resolved materially higher when the region has been under sustained summer heat, but the reference point here is the airport station rather than central Milan, which can trim extremes. Recent Milan temperature markets have also shown that outcomes can be decided by a narrow difference of a few degrees, so the current price only makes sense if traders expect cloud cover, maritime air, or a cooler synoptic pattern to cap the maximum well below the relevant threshold. The contrast between a 0% crowd price and a summer-weather baseline suggests either very strong confidence in a cooler forecast or a thin market with little participation.

Traders should watch the operational forecast for Malpensa, especially the morning to early-afternoon temperature trajectory, since the settlement window ends at 12:00 UTC and the daily maximum can still be set before that point. Any changes in short-range guidance, airport METARs, or convection timing matter more than general Milan headlines, because the contract resolves from the station’s recorded high rather than citywide conditions. There is no meaningful sportsbook-style consensus to compare against for this specific airport-temperature contract, so the practical cross-platform signal is mainly between the prediction market’s zero price and whatever the latest weather models imply for the station peak.

Sources: 1

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi vs Polymarket trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.