Highest temperature in London on June 10?

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Active sub-markets

Market context

London City Airport will record a single daily maximum temperature on 10 June 2026, measured at its official weather station. The settlement hinges on identifying which temperature band contains that peak reading, with resolution sourced from Wunderground's historical weather database for that specific location and date. Traders will need to verify the data pull methodology—toggling the temperature unit setting and confirming the station identifier (EGLC) matches the intended location—before committing capital, as manual verification against the source URL forms part of due diligence for weather markets.

June temperatures at London City Airport historically cluster between 18–24°C for daily highs, though extremes have reached 28°C in warm years. The 0% crowd probability suggests either extreme confidence in a narrow outcome or insufficient liquidity attracting initial positions. Comparable June weather markets across UK airports show that seasonal forecasting models become reliable only within 10–14 days of the event; current pricing reflects this information vacuum rather than genuine market conviction about the specific temperature range.

Programmatic traders should monitor the UK Met Office's extended outlook updates (issued Thursdays) and any anomalous Atlantic pressure patterns that might drive unseasonable heat into early June. Conditional order logic could trigger positions once deterministic forecasts emerge in late May, using historical volatility bands to size entries. The settlement window closes at noon UTC on the event date, requiring traders to confirm Wunderground's data publication timing aligns with their execution windows.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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

Is this market available outside the US?

Polymarket Review UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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 it cost to trade on Polymarket Review UK?

Zero. Polymarket Review UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Review UK triggers a quick verification flow that finishes in minutes.