Highest temperature in Beijing on July 24?

Platform comparison

Market context

Heavy rain and thunderstorms are still in the frame for Beijing today, but the latest public forecasts keep the city around the high 20s Celsius rather than anywhere near extreme heat. A Beijing Daily forecast posted on 24 July puts the day’s high at 29°C with thundershowers, while Met Office and Weather.com forecasts are broadly similar, centring on about 30–32°C with rain risk through the afternoon.[1][5][6]

That matters for this market because the settlement source is the *highest* temperature at Beijing Capital International Airport Station, not the downtown daily average. In July, Beijing’s normal pattern is hot and wet, with typical daytime highs around 31–33°C and frequent rainfall; historical guidance also shows that while 40°C-plus spikes can occur in the month, they are not the base case on an ordinary rainy day.[3][7][8][10] Against that backdrop, a 0% crowd-implied YES looks consistent with an expectation that the airport’s recorded high will stay below the upper temperature bands.

The main catalysts to watch now are the timing and intensity of afternoon convection, plus any shift in cloud cover that allows brief surface heating before storms arrive. Forecast services currently point to showers or thunderstorms rather than sustained sunshine, and BBC Weather shows high humidity with poor visibility, which usually caps upside on maximum temperature readings.[1][2][4] Traders should also watch for any last-minute forecast upgrades to a drier, sunnier afternoon, because that would be the clearest route to a higher airport reading.[5][6]

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

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.

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.