Pronóstico: Highest temperature in London on July 5?

Platform comparison

Market context

On 5 July 2026, the London City Airport Station will record its peak temperature for the day, a single data point that determines the resolution of this prediction market. The current crowd-implied probability of 0% for the highest temperature range suggests traders believe the day will remain cool, yet historical extremes in London contradict such certainty. The highest temperature ever observed in London is 40.2 °C, recorded at Heathrow and St James’s Park on 19 July 2022, while the highest daily minimum reached 25.8 °C in Kenley on the same date[1][8]. Even in early July, London City Airport has seen highs near 29 °C, as forecast for today with sunny intervals and a gentle breeze[2][6]. These comparable cases frame the 0% probability as potentially premature, given that July is London’s hottest month, with an average high of 72 °F (22.2 °C)[4].

Traders should monitor real-time updates from Wunderground, the official resolution source, and watch for sudden shifts in weather patterns driven by southerly winds, which currently bring 88% humidity and falling pressure at the station[2][7]. A key catalyst is the Met Office forecast, which predicts a maximum of 29 °C for today, indicating that temperatures could climb significantly if cloud cover clears and the breeze eases[6]. Any announcement of a heatwave or a change in wind direction from the Met Office could rapidly alter the implied probability, as southerly flows often precede warmer conditions in southern England[2]. With the settlement window ending on 5 July 2026 at 12:00 UTC, the final hours of data collection will be critical, and traders must track live Wunderground updates closely to assess whether the day’s peak exceeds current expectations[7].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Pronóstico: Highest temperature in London on July 5?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

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