Highest temperature in Milan on July 31?

Platform comparison

Market context

Milan’s late-July heat is usually the main driver here: climatology puts the city’s average July high around 31°C, with individual days often reaching the mid-30s in strong summer ridges, while recent history shows the area can still spike far above average during European heatwaves.[7][9][10][19] For this market, the settlement source is the daily high at Malpensa Airport, so the practical question is not what Milan feels like in the centre, but whether the airport station prints a new intraday maximum before the 12:00Z cut-off and how high it gets.[17]

A 0% yes price implies the crowd is effectively discounting any upside or treating the contract as already out of play, which is usually a signal to check the mechanics rather than the headline weather. Programmatically, a trader would monitor the Wunderground history page for the station’s highest recorded temperature, compare it with nearby model output and airport observations, and only then map the reading into the market’s temperature bands; July benchmarks around 29–31°C make lower bands structurally more likely than an extreme outlier, but heat records in Milan show that distribution tails can still matter when a hot air mass settles over northern Italy.[1][5][11][17][19]

The main catalysts are forecast shifts, convective timing, and any synoptic change that alters the daytime peak before noon UTC, because once the settlement window closes the room for a late surge disappears. A power-user workflow would watch short-range forecasts, airport observation feeds, and any heat advisories for Lombardy, then use alerts or conditional orders around threshold levels rather than reacting manually; if cloud cover, storm initiation, or a cool marine intrusion arrives early, the intraday high can be capped well below the seasonal norm.[4][20]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Bot UK, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Bot UK 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.