Pronóstico: Highest temperature in Milan on July 26?

Platform comparison

Market context

Polymarket is pricing this **0% YES** today, which leaves the contract effectively anchored to a no-rise outcome even though the market settles on the highest reading at Malpensa Airport, not on city-centre conditions. Because the contract is USDC-settled on Polygon and resolves through conditional tokens, the practical question for a holder is whether the airport’s peak Celsius print for the day lands in the listed temperature band before the noon UTC settlement cut-off.

For context, Milan in July typically runs hot by European standards, with an average daily high around **29°C** and humidity that can make afternoons feel heavier than the raw thermometer reading suggests.[1] That historical profile matters because this market is about the day’s maximum, which usually comes from the warmest early- to mid-afternoon hours rather than the morning baseline. In prediction-market terms, a zero-implied price is usually read as the crowd expecting either an unresolved administrative edge case or an extremely unlikely temperature band outcome, rather than “nothing will happen” in the weather sense.

A trader watching this contract should focus on the sequence of airport observations and the official Wunderground history page for LIMC, since that is the resolution source named by the market.[1] The key dependency is whether a late-day warm-up still prints before 12:00 UTC, because any post-cut-off rise would be irrelevant to settlement. Milan’s July tourist traffic and dense urban heat can nudge local temperatures higher than surrounding areas, but the market will hinge on the airport station’s recorded maximum, not on forecasts for the broader city.[2]

Sources: 1 · 2

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.

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

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.