Highest temperature in Paris on July 7?

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Market context

Paris is bracing for an intense summer heatwave on 7 July 2026, with temperatures soaring well above seasonal averages across northern France. Short-range ensemble forecasts from major models indicate a high probability of a maximum temperature between 34–36°C in Paris on that day[1]. The current crowd-implied probability of 0% YES for the market appears starkly misaligned with these forecasts, which suggest the frontrunner outcome is 33°C at 56% and 34°C at 26%[1].

Historical data frames this extreme event as a significant outlier rather than a typical July day. While the average high temperature in Paris for July is 26°C, the range of daily highs spans from 20°C to 43°C, with the highest recorded monthly temperature since 1991 reaching 43°C in 2019[4]. The current heatwave is described as a red alert for dangerous heat, with highs potentially reaching 41°C, far exceeding the usual 22–28°C range[2][4]. This context suggests the 0% probability is likely an error, given the historical precedent for such extremes.

Traders should monitor official updates from Meteo France, which has issued a red heat wave alert for 54 departments as high temperatures persist around the clock[6]. The heatwave is expected to last several more days, with temperatures only dropping slightly after 9 July, though a small chance of storms later in the week could bring relief[2]. Key dependencies include the persistence of hot, sunny, and dry conditions alongside very high UV indices, which officials warn could make outdoor exercise dangerous between 12:00 p.m. and 6:00 p.m.[2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in Paris on July 7?. 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 or Manifold.

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

Are prediction markets better than sports betting?

Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.

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.

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.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.