Highest temperature in London on July 5?

Platform comparison

Market context

On 5 July 2026, London City Airport is experiencing sunny intervals with a high of 29°C, yet the crowd-implied probability for any temperature range above this remains at 0% YES, suggesting traders believe the day’s peak has already been reached or that no higher threshold will be breached. This current probability defies historical precedent: London’s highest recorded temperature is 40.2°C at Heathrow on 19 July 2022, and even London City Airport has seen highs near 28–29°C in recent summers, with July being the hottest month on average at 72°F (22°C) [2][5]. The 0% figure likely reflects a misreading of the settlement window or an overreliance on today’s observed high, ignoring that July 5 has historically seen temperatures fluctuating between 24°C and 31°C in comparable years, meaning the market may be prematurely dismissing the possibility of a late afternoon spike [3][7].

Traders should monitor Wunderground’s hourly updates for the remainder of 5 July, as the resolution source requires the first data point for the day to be published before settlement, and any unrecorded peak after 6 PM UTC could shift the outcome [1][8]. Recent Met Office forecasts indicate a dry, settled evening with breezy conditions along the coast, but no guarantee that temperatures won’t briefly exceed 29°C before midnight [7]. Additionally, while no official weather anomalies or suspensions are reported, traders must watch for sudden shifts in southerly wind flow or humidity spikes—currently at 88%—which could trigger a rapid temperature rise in the next few hours [3]. A key dependency is the timing of Wunderground’s data ingestion; if the platform delays recording the day’s true peak, the market may resolve incorrectly, making real-time verification essential for accurate positioning [1][8].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for 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

When do sports markets resolve?

Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.

Can I bet on individual matches?

Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.

Which sports markets are available?

Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.

How fast do sports winnings settle?

Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.

What's the difference between match odds and outright odds?

Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.