Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win 2026) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 34°C | 100% |
| 31°C or below | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 35°C | 0% |
| 36°C | 0% |
| 37°C | 0% |
| 38°C | 0% |
| 39°C | 0% |
| 40°C | 0% |
| 41°C or higher | 0% |
Market context
The afternoon high at Malpensa Airport is the live event, and the market is currently pricing a **0% YES** chance on the listed outcome. Against that backdrop, the crowd is treating any specific temperature band as an underdog, with the consensus leaning towards a modestly warm result rather than an extreme heat print; the platform’s own ladder shows **34°C** as the slight favourite at about **33%**, ahead of **35°C** at **27%**.[2]
Historically, August in Milan usually sits in the high-20s to low-30s Celsius, with long-run guides putting typical daytime maxima around **28–29°C**.[7][9][15] That means a forecast in the mid-30s is already above seasonal norm, while outcomes much hotter than that require an organised heat surge rather than ordinary summer warmth. Recent local coverage points to a hot, sunny spell with temperatures up to the high-30s across Lombardy, which supports the idea that the market’s true centre of gravity is higher than the zeroed-out crowd price suggests; the value, if any, sits on the warmer bands rather than the cooler tail.[3][14]
For catalysts, the key watchpoint is whether the heat peaks earlier in the day or is diluted by cloud, mixing, or any late convective activity, because the market settles on the **highest** temperature recorded in the day rather than the daytime average.[2] Malpensa’s airport setting also matters: airport stations can run a touch cooler or warmer than central Milan depending on wind and boundary-layer conditions, so traders should focus on the exact Wunderground read rather than city-centre headlines.[2] With current guidance already hinting at a hot start to August, the contrarian angle is not that Milan stays cool, but that the eventual top reading lands a notch below the most aggressive heat forecasts.[3][14]
Methodology
This page reviews Highest temperature in Milan on August 2? 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 Who Will Win 2026, which mirrors the Polymarket order book at 0% fees.
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
- 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 Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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'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 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.
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