Highest temperature in London on June 7?

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Active sub-markets

Market context

The highest temperature recorded at London City Airport on 7 June 2026 will determine which temperature band this market resolves to, with settlement based on historical weather data from Wunderground. London's June temperatures typically range from 15°C to 23°C, though heat waves can push readings into the high 20s or low 30s Celsius. The 0% crowd probability suggests traders are either uncertain about extreme heat conditions or treating this as a baseline weather forecast rather than an outlier event.

Historical June records for London show considerable variability. The Met Office records indicate that whilst average June highs sit around 21°C, the capital has experienced temperatures exceeding 30°C during June in recent decades, most notably during the 2022 heat wave when parts of England reached 40°C. The specific resolution source—London City Airport Station—may differ slightly from central London readings, as airport weather stations can show marginal variations depending on local geography and surface conditions. Traders should reference comparable June days from previous years to calibrate expectations against seasonal norms.

The settlement window closes at midday on 7 June 2026, meaning traders must account for the full day's temperature range before noon. Weather forecasting accuracy for specific dates remains limited beyond ten days, so near-term catalyst monitoring will be essential. Traders should watch UK Met Office seasonal outlooks and any declared heat-health alerts issued by the UK Health Security Agency in early June, which would signal elevated temperature expectations for that period.

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in London on June 7? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

Where can I trade this market with the lowest fees?

On Trump Prediction, which mirrors the Polymarket order book at 0% fees. 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 it cost to trade on Trump Prediction?

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

Do I need to KYC for this market?

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