Highest temperature in Milan on July 15?

Platform comparison

Market context

Milan’s Malpensa International Airport is set to record its peak temperature for 15 July 2026, with the market currently pricing a 100% YES probability that the reading will fall within a specific range. The crowd is fully convinced, mirroring the behaviour seen on 5 July 2026, when the station recorded exactly 33°C and the market converged to 100% implied probability before settlement [3]. Historical July data shows Milan averages comfortable humidity at 58% with an 18% daily rain chance, yet heatwaves regularly push highs above 30°C, making the current certainty unusual unless a specific forecast has already locked in the outcome [2].

Traders should monitor real-time Wunderground updates for the Malpensa station, as the resolution source relies exclusively on the highest temperature recorded for all times on that day [3]. The consensus is entirely on one outcome, leaving no visible underdog or contrarian angle unless a sudden weather shift occurs before the 12:00 UTC settlement window closes. With the frontrunner on similar markets previously being “32°C or below” at 50% and “33°C” at 33%, the current 100% pricing suggests either a resolved event or extreme market confidence that may hide value if the forecast is wrong [1]. No new announcements are pending; the dependency is purely the live temperature feed.

Sources: 1 · 2 · 3

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win 2026 trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.