Highest temperature in Paris on August 5?

Platform comparison

Market context

Paris is starting the day with a broadly warm but not exceptional August setup, and the latest forecasts still point to daytime highs in the mid-to-high 20s Celsius rather than anything close to a heatwave. AccuWeather’s August outlook for Paris shows highs mostly between 71°F and 81°F, while a local Paris forecast for 5 August calls for dry, sunny weather with a peak around 29°C[1][7].

That matters because the market resolves on the single highest reading at Paris-Le Bourget Airport Station, not the day’s average or the city-wide feel. For a 5 August outcome, the relevant comparison is with typical Paris August highs of roughly 23°C to 26°C, which means a result in the upper 20s would be warm relative to normal but still well within the forecast envelope shown in the recent models[2][4][6][8][19].

Traders should watch the timing of the warmest part of the day, cloud cover, and any short-lived showers, because small shifts can change the daily maximum even when the broader forecast looks stable. The key dependency is whether the sunny, dry spell expected for early August holds through the afternoon; if it does, the highest temperature can edge up towards the upper end of the current forecast range, while more cloud or a brief rain band would cap it lower[7][8][9].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Paris on August 5? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Prediction Today, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.