Highest temperature in Paris on July 3?

Platform comparison

Market context

Paris is bracing for a powerful heatwave on 3 July 2026, with temperatures sharply rising above seasonal averages across northern France. Forecasts indicate afternoon highs soaring to 36°C, potentially reaching 37°C by midday, while overnight lows remain balmy at 21°C, limiting cooling relief. This intense heat is expected to make it one of the hottest days of the summer so far, with dry conditions and almost no rain dominating the region [1].

Historical context frames the current 0% YES probability for lower temperature ranges as highly rational. France recently recorded its hottest day ever, with peaks of 44.3°C in Landes and a national thermal indicator of 29.8°C, while the Paris region has seen temperatures exceed 40°C in previous June heatwaves [5][6]. With temperatures in the Paris region likely to reach between 36°C and 38°C, possibly up to 40°C, as warned by forecast models, the market correctly anticipates that the highest temperature will fall well above lower thresholds [2].

Traders should monitor official Meteo France updates and Wunderground data releases for the Paris-Le Bourget Airport Station, as the resolution depends on the highest recorded temperature for all times on this day. Recent news from Le Monde confirms that France will likely face its third heatwave of the year this weekend, with temperatures climbing again on Friday and peaking on Sunday, reinforcing the expectation of extreme heat [2]. The settlement window ends on 3 July 2026 at 12:00 UTC, so any sudden shifts in forecast models or real-time station readings could impact the final resolution source.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-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 (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.

What are live sports odds on Polymarket?

Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.

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.