Highest temperature in Madrid on July 22?

Platform comparison

Market context

Madrid’s airport has already posted **extreme heat** this afternoon, with the latest report showing **102°F** and dry, mostly clear conditions, while market pricing still centres on **39°C** as the frontrunner and leaves a meaningful tail at **40°C**. That makes the key question less about whether it is hot and more about whether the day’s peak ends up brushing the upper end of the forecast range before the measurement window closes.[2][1]

The current reading sits comfortably in the same zone as recent local forecasts, which pointed to a maximum around **39°C** and very little chance of rain, with some outlets warning of highs near **39.5°C** and little cloud cover to blunt the heating.[3][4] In Madrid, late July often sees temperatures well above seasonal norms, but the airport station can still finish a degree or two either side of city forecasts depending on the timing of the afternoon peak and any sea-breeze or wind shift.[6][7]

The main catalysts now are the **timing of the daily high** at Adolfo Suárez Madrid-Barajas and whether the heat already observed early this afternoon keeps building before the settlement cutoff. Traders should watch the hourly airport updates and any short-fuse changes to Spanish heat warnings, because a small late rise from the current 39°C band into 40°C would materially alter the payout profile in a market that is already heavily skewed towards the lower outcome.[2][3][4]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Madrid on July 22? 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

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 Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.