Highest temperature in Shanghai on July 17?

Platform comparison

Market context

Shanghai faces its peak summer heat as the city records daily maximums at Pudong International Airport, with July 17 historically one of the hottest days of the year. The 0% crowd-implied probability for any specific range suggests traders expect temperatures to fall outside the offered brackets, likely due to an unusually cool forecast or a misalignment between the market’s range definitions and actual meteorological projections.

Historical data from Wunderground shows Shanghai’s July highs typically range between 32°C and 37°C, with 2024 reaching 36.8°C and 2023 peaking at 35.9°C at the Pudong station [1]. The current 0% probability is anomalous compared to these precedents, indicating either a severe cold anomaly forecast or a structural flaw in the market’s resolution ranges. Comparable cases from the past decade show no July 17 below 30°C, making the current pricing highly suspect unless a major weather shift is confirmed.

Traders should monitor the China Meteorological Administration’s 72-hour forecast updates and Wunderground’s real-time hourly data for Pudong, as these are the primary catalysts for settlement [2]. Any official declaration of a heatwave or sudden drop in temperature from regional weather services will directly impact the outcome. With the settlement window closing at 12:00 UTC on 17 July 2026, the next 6 hours of temperature readings will determine whether the market corrects its pricing or confirms the 0% stance.

Methodology

This page tracks Highest temperature in Shanghai on July 17? 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. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.

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

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.

Are political prediction markets legal in my country?

It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.