Highest temperature in Shanghai on June 22?

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Market context

The real-world event is the highest temperature recorded on 22 June 2026 at Shanghai Pudong International Airport, measured in degrees Celsius and resolved via Wunderground data. Current crowd-implied probability of 0% for any specific range suggests the market expects an outcome outside the listed brackets, likely due to extreme heat or data anomalies. Historical patterns show June highs at this station typically range from 25°C to 35°C, with rare spikes exceeding 40°C during heatwaves, as seen when Shanghai recorded 40.9°C in a recent surge [7]. Comparable cases from past summers indicate that temperatures above 35°C are not uncommon during sunny periods, reaching up to 35°C or 95°F under optimal conditions [5].

Traders should monitor the Shanghai Meteorological Centre’s orange alert status, which has been issued following consecutive heatwaves across southeast China, and watch for scheduled weather declarations or emergency climate conventions that could signal further temperature escalations [7]. The market is leaning on the catalyst of sustained heatwave activity, with recent campaign-finance disclosures from local environmental groups hinting at increased funding for climate resilience, potentially affecting public response to extreme weather. A key news source, the Facebook post from Trending in China, confirms the orange alert and notes the 40.9°C record, reinforcing the likelihood of high temperatures [7]. No moralising on trading is offered; the facts point to a high-temperature scenario that may fall outside current market ranges.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Shanghai on June 22? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. Election Predictions UK routes every trade through to Polymarket — at 0% fees.

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

Where can I trade this market with the lowest fees?

On Election Predictions UK, which mirrors the Polymarket order book at 0% fees. 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'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.

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.