Highest temperature in London on June 7?

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Active sub-markets

Market context

On 7 June 2026, the highest temperature recorded at London City Airport will fall into one of several defined ranges. The settlement will draw from Wunderground's historical weather data for that specific station, which sits in East London and typically records temperatures representative of central urban conditions. Current crowd pricing implies near-zero confidence in any particular outcome, reflecting the distance of the forecast horizon and inherent uncertainty in seasonal weather prediction.

London's June temperatures have historically clustered between 18°C and 24°C, with occasional peaks above 25°C during warm spells. The Met Office's 30-year climate normals show a June mean maximum of 20.3°C at central London stations. Comparable prediction markets on UK summer temperatures have resolved across a wide distribution; the absence of strong crowd conviction here aligns with standard practice when settlement dates lie more than eighteen months ahead and no extreme weather pattern has yet emerged in seasonal models.

Traders should monitor the UK Met Office's seasonal outlook updates, typically issued quarterly, which may shift confidence in warmer or cooler June outcomes as 2026 approaches. The North Atlantic Oscillation and sea surface temperature anomalies in winter and spring 2025–26 will influence atmospheric patterns; any sustained warming signal in those indices could tighten probability ranges toward higher temperatures. Real-time weather forecasting becomes actionable only in the final week before 7 June, at which point deterministic models replace climatological priors.

Methodology

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

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

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 it cost to trade on Polymarket KYC UK?

Zero. Polymarket KYC 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 KYC UK triggers a quick verification flow that finishes in minutes.