Highest temperature in NYC on July 30?

Platform comparison

Market context

The settlement will turn on the highest reading at LaGuardia Airport on 30 July 2026, which means traders are ultimately betting on whether New York reaches a genuine summer spike rather than an average warm day. In the current run-up, the market is pricing a very low chance of an extreme outcome, with the crowd-implied probability at 0% YES, so even a modest heat surge would be a meaningful surprise relative to the present view.

Historically, New York City July temperatures can jump sharply during heat waves, but very high maxima remain uncommon. Central Park’s all-time high is 106°F, recorded on 9 July 1936, and LaGuardia has reported even hotter conditions on some peak summer days, including 107°F on 3 July 1966. More typical late-July highs sit in the upper 80s Fahrenheit, which is close to the recent AccuWeather forecast profile for the end of July rather than the city’s record territory. [5][15][1]

For trading, the key catalyst is the weather forecast path into the afternoon and whether any heat advisories or a regional ridge build in the days before settlement; that will matter more than anything political, notwithstanding the requested cluster framing. The most relevant source for resolution is Wunderground’s LaGuardia history page, so traders should watch for forecast upgrades, cloud cover, and any late-day thunderstorm risk that could cap the station maximum. Recent local coverage has already highlighted the possibility of another hot spell in late June, underscoring how quickly expectations can shift when the Northeast enters a heat-wave pattern. [16][17][1]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in NYC on July 30? 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

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.

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.