Highest temperature in Milan on August 2?

Platform comparison

Market context

Milan’s 2 August high is the relevant event here, measured at Malpensa Intl Airport Station and settled from Wunderground’s daily history page. The market is currently pricing a 34°C finish as the front-runner at 33%, with 35°C next at 27% and 33°C at 26%, while the 36°C bucket is a lower-probability tail at 11%.[1]

That pricing sits above Milan’s usual August climate. Long-run guides put typical daytime highs around 28–31°C, so a mid-30s print implies a meaningful heat departure rather than an ordinary summer day.[2][9][10][17] The market also reflects the way airport readings can differ from city-centre experience: Malpensa sits outside the densest urban core, so local wind, cloud timing and boundary-layer mixing can matter as much as the broader Milan forecast. Recent Italian coverage has highlighted widespread heat alerts across major cities, which supports the idea that traders are still anchoring on a hot outcome rather than a cooler historical norm.[14]

For traders, the main catalysts are the late-day forecast updates, the exact timing of the daily maximum, and whether convective cloud or a thunderstorm trims the peak before the settlement window closes. On a day like this, small forecast shifts of 1°C can move value between adjacent ranges because the contract resolves to the highest reading, not a noon snapshot. Cross-platform comparison shows little sign of a big consensus split: the Polymarket crowd is clustered tightly around 33–35°C, and there is no clear evidence here of a materially different sportsbook line or analyst view pulling against that band.[1][2]

Sources: 1 · 2 · 3 · 4 · 5

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

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi vs Polymarket. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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.