Highest temperature in Paris on July 3?

Platform comparison

Market context

Paris is bracing for a powerful heatwave that will push temperatures sharply higher across northern France on 3 July 2026, with midday highs forecast to reach 37°C and afternoon peaks near 36°C. This intense summer surge, driven by strong sunshine and dry conditions, marks one of the hottest days of the season so far, limiting overnight cooling and sustaining balmy nights around 21°C.

Historically, such extreme July heat in Paris has rarely resulted in temperatures below 28°C; recent records show the city hitting 44°C during an early heatwave in 2026, while the national thermal indicator peaked at 29.8°C in June. The current crowd-implied probability of 0% for any outcome below 28°C aligns with these precedents, as even the lowest recent forecasts for minimum temperatures on this date sit at 15°C, far above the threshold for cooler ranges.

Traders should monitor real-time updates from Meteo France, which has issued a red heat wave alert for 54 departments, indicating persistent high temperatures around the clock. Key dependencies include the official Wunderground reading for Paris-Le Bourget Airport Station, which will determine the resolution, and any sudden shifts in cloud cover or wind patterns that could alter the peak temperature. With volume thin on related contracts and weather models still updating, the market remains highly sensitive to these live data points.

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Methodology

Sports-specific comparison page for Highest temperature in Paris on July 3?. 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

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Can I import form data and lineups?

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