Highest temperature in London on June 10?

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Market context

London's weather on 10 June 2026 will be measured against historical June temperatures at City Airport, where records show typical highs range between 19–23°C during early summer. The current 0% probability assigned to this market suggests traders are pricing in an expectation that temperatures will fall outside whatever range this particular contract specifies—though without visibility on the exact temperature bands available, the flatlined odds indicate either extreme confidence in a specific outcome or minimal trading activity. June in London typically sees mild conditions influenced by Atlantic systems and occasional continental air masses, with extremes rare but not unprecedented; the UK recorded 32.2°C in June 1976 during an exceptional heatwave, though such events remain statistical outliers.

The Met Office's seasonal outlooks and any significant weather pattern shifts in late May would serve as key indicators for traders monitoring this contract. Atmospheric blocking patterns or early summer heat domes affecting northern Europe could push London temperatures notably higher, whilst persistent low-pressure systems would suppress maxima. Real-time forecasting models become reliable only within 10–14 days of the settlement date, meaning current probability assessments likely reflect either structural market factors or the absence of compelling near-term meteorological signals. Traders should monitor whether late-May weather systems establish a pattern that persists into early June, as such persistence often determines whether anomalous temperatures materialise.

Methodology

This page reviews Highest temperature in London on June 10? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Prediction Today — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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?

Prediction Today 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.

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 Prediction Today?

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

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.