Highest temperature in Shanghai on July 24?

Platform comparison

Market context

Shanghai is sitting in its mid-summer heat corridor, and the market’s current **0% YES** implies traders see the day’s airport high as landing outside the listed band with near-total confidence. In practical terms, the favourite outcome is still a **hot afternoon**, because the forecast for Shanghai today points to a high around **95°F/35°C** and broadly similar heat on adjacent days, which leaves the consensus clustered around the low-to-mid 30s Celsius rather than an extreme outlier.[1][4]

For framing, July in Shanghai is typically **hot, humid and changeable**, with high temperatures often around **32°C** and frequent rainfall in the monthly pattern, so the main underdog risk is not a chilly day but a cloudburst or thunderstorm clipping the peak temperature before the airport reaches its top reading.[2][6] That makes the value question a timing trade: if the airport gets several dry, sunny hours before convection builds, the upside is a new day’s high in line with forecast norms; if showers arrive early, the cap on the maximum can be lower than modelled.

The catalysts to watch are the **hourly forecast trend**, any shift in rain timing, and whether convective cloud cover builds over Pudong during the late morning and early afternoon window before the settlement cutoff.[3][4] Current live forecasts still show warm conditions and only modest precipitation chances, which supports the market’s favourite side, but the contrarian angle is that Shanghai’s summer weather can turn quickly, and a small shift in storm timing is enough to change the eventual airport maximum.[1][4]

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 Who Will Win, 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

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 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.

Do I need to KYC for this market?

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