Highest temperature in NYC on August 6?

Platform comparison

Market context

New York City is in a late-summer warm spell, with forecasts for early August pointing to upper-80s or low-90s Fahrenheit rather than an extreme heat outbreak. AccuWeather’s daily outlook has shown a high of about 88°F for 6 August, while weather coverage on the day has described temperatures as climbing into the 90s with Heat Advisory conditions across the metro area, even if the actual peak is expected to remain in the upper 80s to low 90s.[3][10]

That makes a very low implied chance on a specific temperature band notable, because late-season NYC highs are usually clustered near the mid-to-upper 80s unless a sharp ridge or stalled front pushes readings higher. Comparable August forecasts for the city have repeatedly centred on 85–90°F highs, which means the market is effectively asking whether LaGuardia can register a modest overshoot relative to the broad consensus rather than a major deviation.[3][9][15]

The main catalyst to watch is the short-range forecast and any late-day adjustment from the National Weather Service, since a Heat Advisory can coexist with a high that still lands below the hottest band if cloud cover, sea-breeze effects, or timing of peak heating cap the maximum. Traders should also watch whether the warm spell verifies against the airport-specific reading at LaGuardia rather than a citywide or Central Park estimate, because the resolution source is the Wunderground history page for KLGA and airport microclimates can differ materially from published NYC headlines.[10][14]

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 NYC on August 6? 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.

UK Frequently Asked Questions

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.

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.

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.