Highest temperature in Paris on June 26?

Platform comparison

Active sub-markets

Market context

The underlying event is a forecast for extreme heat in Paris on 26 June 2026, yet the market currently assigns zero probability to any temperature exceeding the highest recorded range, despite France recently shattering its all-time heat record. Historical data shows Paris June highs typically climb from 20.5°C to 23.3°C, rarely exceeding 29.4°C, yet the nation just measured 45.1°C in Landes and 44.3°C in southwest France during a brutal, week-long heatwave that triggered red alerts across 54 departments[1][2][3]. Paris itself recorded its hottest day on record recently at 42.6°C, shattering the 1947 benchmark, which suggests the current zero probability is a stark misreading of the prevailing meteorological trend rather than a reflection of seasonal norms[2][5].

Traders must monitor the official Meteo France heatwave declarations and any scheduled climate emergency announcements from the EU, as these catalysts directly influence temperature persistence and intensity across western Europe[3]. The market is leaning heavily on the recent record-breaking thermal data from Axios and AP News, which confirm that June 2026 is already the hottest month on record for the region, with new peaks set in the UK and France this week[7][9]. Watch for the next 24-hour forecast updates from Wunderground for the Paris-Le Bourget station, as dependencies on the ongoing red alert status will determine whether the heatwave extends into the settlement window, potentially pushing temperatures well beyond historical averages[3].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Paris on June 26? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. Election Predictions UK routes every trade through to Polymarket — at 0% fees.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

Where can I trade this market with the lowest fees?

On Election Predictions UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does it cost to trade on Election Predictions UK?

Zero. Election Predictions UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Election Predictions UK triggers a quick verification flow that finishes in minutes.