Highest temperature in Milan on August 7?

Platform comparison

Market context

Milan’s 7 August peak temperature is the key variable, and the contract settles on the **highest Celsius reading at Malpensa Intl Airport Station** from Weather Underground’s Daily Observations table, not the headline day-high summary. That matters because the market is not asking whether Milan feels hot in general, but which temperature band captures the day’s maximum station observation, and that can differ from broader city forecasts or summary widgets.[14]

The current crowd price of **0% YES** is sharply out of line with the forecast and comparable-market picture. Polymarket’s own contract page shows traders concentrating around **33°C–34°C** rather than sub-30s outcomes, with 34°C the leading outcome at 49% and 33°C at 32%, which implies the crowd expects a warm to very hot afternoon rather than a cool day.[8] Independent August climatology for Milan also points to daytime highs around **28°C–30°C** on average, while recent forecast sites place 7 August near **28°C** with showers possible, a spread that suggests the market’s pricing is reflecting a warmer terminal outcome than the broader long-run average.[1][2][7]

For traders, the main catalysts are the day’s evolving forecast updates and the late-afternoon observation path at the airport station, because the settlement source is a specific station log rather than a citywide forecast. AccuWeather has issued a **yellow warning for extreme high temperature** for Lombardia from 08:00 to 19:59 local time on 7 August, which supports the case for a meaningful heat ceiling even if cloud or showers trim the final reading.[12] The practical comparison is that sportsbook-style weather lines are usually built around a single forecast number, while this contract behaves more like a resolution to an exact observed band, so any drift in the late model runs or station observations is likely to matter more than the broad seasonal average.[12][14]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Milan on August 7? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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 PolyGram. 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.

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 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 PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.