Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Legal UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 86-87°F | 100% |
| 71°F or below | 0% |
| 72-73°F | 0% |
| 74-75°F | 0% |
| 76-77°F | 0% |
| 78-79°F | 0% |
| 80-81°F | 0% |
| 82-83°F | 0% |
| 84-85°F | 0% |
| 88-89°F | 0% |
| 90°F or higher | 0% |
Market context
The underlying real-world event is the highest temperature recorded at LaGuardia Airport on 8 July 2026, measured in degrees Fahrenheit and resolved via Wunderground data. While the current crowd-implied probability for a specific outcome is listed as 0% in some summaries, the market actually assigns a 53% chance to the 84–85°F range and 23% to 82–83°F, reflecting active trading on near-term heat expectations[1]. This contrasts sharply with the preceding day, 7 July, where the market settled at 100% probability for 72–73°F, indicating a rapid shift from mild conditions to a potential heat spike[2].
Traders should monitor daily climatological reports from the National Weather Service and real-time updates from FOX Weather, which recently highlighted LaGuardia’s record-breaking midnight temperature of 94°F during an East Coast heatwave[4][6]. The key catalyst is the continuation of this heatwave into 8 July, with forecasts suggesting daily highs between 73°F and 91°F for the month, making the upper end of that range critical for resolution[9]. Regulatory accessibility remains a factor: under German GlüStV and US CFTC frameworks, platforms offering “no-KYC up to $1,500” allow retail participants to access this market without identity verification, provided they stay within the threshold, though compliance obligations still apply for larger positions.
This market’s resolution hinges on a single data point from a specific station, meaning volatility will spike if Wunderground updates are delayed or if cloud cover obscures peak readings. The 0% figure cited in some contexts likely refers to a specific temperature range not yet favoured by traders, not the entire market’s viability. Given the recent record heat and forecast trends, the 84–85°F range is the frontrunner, but traders must watch for sudden shifts in weather patterns that could push temperatures lower or higher before the 12:00 UTC settlement window closes[1].
Methodology
This overview of Highest temperature in NYC on July 8? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- Is Polymarket legal in my country?
- Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Polymarket Legal UK has a different geo footprint.
- How are winnings taxed?
- Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
- What happens during a tax audit?
- You're responsible for documenting your trades. Polymarket Legal UK exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
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