Highest temperature in NYC on July 16?

Platform comparison

Market context

New York City is bracing for its highest July 16 temperature in decades, with the LaGuardia Airport Station expected to hit a peak that could shatter historical norms. On Polymarket, this real-world uncertainty is priced at a 57% probability for the YES outcome, reflecting a market leaning toward a scorching day. The contract trades on Polygon using USDC, where conditional tokens allow traders to speculate on specific Fahrenheit ranges; currently, the 92–93°F bracket is the frontrunner at 31%, followed closely by 90–91°F at 26% [1].

Historical context suggests the current probability is well-calibrated given the unprecedented heat wave that recently swept the East Coast. Last week, NYC, Washington DC, and Atlantic City simultaneously broke long-standing temperature records, with some benchmarks standing for over 150 years before collapsing during a holiday weekend [2]. This cluster of record-breaking events across a 500-mile corridor indicates a persistent atmospheric pattern that makes a 90°F+ day in mid-July increasingly plausible, supporting the market’s bullish tilt toward higher temperatures.

Traders should monitor the National Weather Service’s daily forecasts and Wunderground’s real-time updates for LaGuardia, as the settlement relies exclusively on the highest temperature recorded there by 12:00 UTC on 16 July 2026. Any sudden shifts in cloud cover, wind direction, or humidity levels could alter the peak temperature, making hourly weather bulletins the primary catalyst for price movement. With the settlement window closing soon, on-chain liquidity will likely react sharply to the latest meteorological data, particularly if temperatures approach the 92–93°F range that currently dominates the order book [1].

Sources: 1 · 2

Methodology

We track Highest temperature in NYC on July 16? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.