Highest temperature in Madrid on July 22?

Platform comparison

Market context

Madrid’s midday temperature is a weather outcome governed by the day’s synoptic set-up, with the settlement cut-off at 12:00 UTC meaning the market is really about the hottest reading reached by late morning rather than the full afternoon high. A 0% crowd-implied chance of the top band indicates the market is treating an extreme spike as very unlikely, which is consistent with how July temperature distributions in Madrid usually cluster around the seasonally hot but still bounded mid-30s Celsius rather than the sort of outlier readings that would force the upper range.

For traders, the main catalyst is the local forecast path into late morning: cloud cover, wind direction, and any convective build-up can move the airport reading materially even if the broader city forecast looks stable. Heat advisories, revised short-range forecasts, or a late-rising trough can shift expectations quickly, while a clear, dry high-pressure pattern would keep the outcome anchored to the usual summer range. The market is therefore leaning most heavily on the next official forecast updates and any same-day weather warnings, rather than on longer-range seasonal expectations.

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Madrid on July 22? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

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

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.

How fast do political markets react to news?

High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

Are political prediction markets legal in my country?

It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.