Highest temperature in Shanghai on July 1?

Platform comparison

Market context

Shanghai’s July heat is a defining climatic feature, with temperatures at Pudong International Airport routinely climbing above 30°C and peaking near 35°C during the most intense sunny spells[6]. Historical data confirms that July is the hottest month of the year, averaging a high of 87°F (approximately 30.5°C), while daily highs in recent years have ranged from 84°F to 88°F (29°C–31°C), rarely dropping below 75°F (24°C)[3][8]. Given that the current crowd-implied probability for any specific temperature range is 0% YES, this likely reflects a market misunderstanding of seasonal norms rather than an actual absence of heat; comparable cases show that dismissing July highs as improbable contradicts decades of recorded weather patterns at this station[3].

Traders should monitor real-time updates from Wunderground, the official resolution source, which will publish the highest temperature recorded for all times on 1 July 2026 at Pudong Airport[1]. While no political debates or campaign-finance disclosures directly influence weather, the market appears to be leaning on the catalyst of immediate meteorological data releases rather than scheduled events, as weather is inherently independent of political calendars. Recent forecasts from AccuWeather indicate daily highs in July 2026 will range between 80°F and 93°F (27°C–34°C), reinforcing that extreme heat is statistically expected[5]. The key dependency is the timely availability of Wunderground’s daily record, which must be verified before the settlement window closes on 1 July 2026 at 12:00 UTC[1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Shanghai on July 1? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

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

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

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.

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.