Highest temperature in Madrid on July 24?

Platform comparison

Market context

Madrid is entering a very hot summer pattern, and the latest market pricing still implies an unusually narrow set of outcomes with 0% assigned to the event as written. That is notable because late-July conditions in Madrid are typically hot enough that daily highs cluster in the low-to-mid 30s Celsius, while July highs “rarely” fall below 78°F or exceed 99°F, suggesting the upper tail is present but not common on a normal day.[1][5]

For context, the current forecast for Madrid shows a maximum daytime temperature of 37°C, with sunny conditions and only a low rain risk, which keeps the focus on heat rather than storm-driven cooling.[6] More broadly, July in Madrid is one of the driest periods of the year, with rainfall described as rare to nonexistent and sunshine levels remaining high through the month, so traders should expect the day’s peak to be driven mainly by the strength and timing of daytime heating rather than precipitation.[3][5]

The main catalysts to watch are the evolving short-range forecast from meteorological services and any shift in the afternoon heat profile before the settlement window closes at noon UTC, because the market resolves on the highest temperature recorded at Madrid-Barajas Airport during the day, not the average or the midnight reading.[6] In similar Madrid summer setups, small changes in cloud cover, wind, or the arrival of hotter continental air can move the daily maximum by a couple of degrees, which is often enough to change the winning temperature band.[1][3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Today, which mirrors the Polymarket order book directly.

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.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Today trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.