Highest temperature in Shanghai on July 3?

Platform comparison

Market context

Shanghai’s July 3 maximum temperature hinges on whether the city breaks its recent heatwave pattern, with current crowd-implied odds of 0% suggesting traders expect a cool day. Historically, early July in Shanghai sees highs typically peaking between 28–31°C, though 2025 recorded an extreme 38°C at 3 PM [2]. Average daily highs in July rise steadily from 84°F to 88°F (29–31°C), rarely dipping below 75°F (24°C) [1]. The 0% probability likely reflects short-range model guidance clustering tightly around 28–29°C, implying traders doubt a record-breaking spike will occur [6].

Traders should monitor real-time updates from Wunderground for the Shanghai Pudong International Airport Station, as thundery showers and high humidity (84%) could suppress peak temperatures [4]. Early July precipitation remains common, with moderate rain forecasted to limit solar heating [8]. Key dependencies include the timing of peak heat—typically around 3 PM—and whether cloud cover persists through midday [2]. Any sudden shift in wind speed, currently light at 6 mph, or a drop in humidity could alter the outcome, making live weather feeds essential for tracking catalysts [4].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in Shanghai on July 3?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

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How fast do sports winnings settle?

Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.

What's the difference between match odds and outright odds?

Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.