Highest temperature in NYC on August 8?

Platform comparison

Market context

The key real-world driver here is the temperature actually logged at LaGuardia on 8 August, because the market resolves off the daily observations table rather than the headline high/low summary. Weather Underground’s station-based history, together with nearby public weather reporting, is therefore the cleaner guide than broad NYC averages or citywide “feels-like” coverage.[3][5][6]

The current 0% YES implies traders are effectively pricing in a ruled-out outcome, which only makes sense if the range being referenced is far outside the observed day’s heat. Comparable late-summer NYC days usually settle in the low-to-mid 80s Fahrenheit, with occasional spikes into the 90s when warm air and humidity align; NWS climate normals put Central Park’s August average maximum at 84°F, while 2026 reporting around 8 August showed LaGuardia already at 89.1°F by late afternoon and nearby forecasts in the upper 80s to around 90°F.[2][5][6][16]

For traders, the catalyst is not a debate schedule or fundraising release but the sequence of station observations through the day and any late revisions before the next day’s first datapoint is published. Polymarket’s own rules say edits within the window can count until that next-day datapoint appears, so the market will lean on the final official LaGuardia reading rather than forecast chatter; recent coverage from weather outlets also pointed to hot, storm-prone conditions across New York, which is the sort of setup that can cap highs if convection arrives early or extend them if skies stay partly sunny.[3][10]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in NYC on August 8? 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.

UK Frequently Asked Questions

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.

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.

How fast do political markets react to news?

High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

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.

Are UK election prediction markets available from the UK?

Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.