Highest temperature in Shanghai on July 6?

Platform comparison

Market context

The underlying event is the peak daytime heat at Shanghai Pudong International Airport on 6 July 2026, a date historically synonymous with intense summer conditions where temperatures routinely surpass 30°C and often breach 35°C. Current crowd-implied probability sits at 0% for the YES outcome, suggesting the market believes the temperature will fall outside the specific range being traded, likely because the consensus expects a value far higher than the threshold. Historical averages for July at this station show daily highs climbing from 84°F to 88°F, rarely dropping below 75°F or exceeding 95°F, with solar energy gradually increasing throughout the month[1][6]. This pattern frames the current probability as potentially mispriced; if the range implies a cooler day, the value lies in betting against that contrarian angle given the statistical likelihood of heat exceeding 35°C[7].

Traders should monitor the immediate forecast for light rain and gentle breezes, which could temporarily suppress peak temperatures, though the broader trend points to sustained heat. Recent data from BBC Weather indicates drizzle and a gentle breeze for today with a high of 93°F, followed by light rain on Tuesday 7th July with a high of 96°F[3]. While this moisture acts as a short-term underdog for extreme heat, the seasonal dependency on rising solar radiation suggests the heat will rebound quickly, making the 0% probability a potential favourite for a value spot if the range is set conservatively. The settlement window closing on 6 July 2026 at 12:00 UTC means the market resolves on the highest recorded temperature for all times on that day, so any afternoon spike remains critical regardless of morning drizzle[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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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 Who Will Win. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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.