Highest temperature in Milan on August 20?

Platform comparison

Market context

On 20 August 2026, the highest temperature recorded at Milan's Malpensa International Airport will determine the settlement outcome for this market. Resolution hinges on the Daily Observations table from Weather Underground rather than the Day High & Low summary, a distinction that matters when intraday spikes occur before official highs are logged. The 0% crowd probability suggests traders are either heavily discounting a specific temperature range or the market lacks sufficient liquidity to price uncertainty across the full distribution of plausible August highs.

Milan's August temperatures typically range between 24–32°C, with extremes occasionally breaching 35°C during heat waves. Historical data from Malpensa shows that August 20 has seen highs from 19°C to 34°C over the past two decades, establishing a wide but bounded envelope. The current flat probability distribution across all ranges reflects either genuine uncertainty about which bracket will resolve or thin order books that haven't yet attracted directional volume from weather-focused traders or macro hedgers.

Traders should monitor European summer weather forecasts from mid-August onwards, particularly any alerts from Meteo-France or ARPA Lombardia regarding heat dome positioning. Funding rates on crypto derivatives markets sometimes correlate with macro risk-off sentiment during extreme weather events; unusually elevated BTC/ETH funding rates in late August could signal broader market stress that indirectly affects prediction market participation. Settlement occurs at 12:00 UTC on 20 August 2026, locking in Wunderground's recorded observation with no appeals mechanism.

Methodology

This page reads Highest temperature in Milan on August 20? on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

UK Frequently Asked Questions

What are crypto prediction markets?

Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.

Why USDC and not ETH or USDT?

USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.