Highest temperature in NYC on July 16?

Platform comparison

Market context

New York City is bracing for a severe heatwave on 16 July 2026, with forecasts predicting highs near 97°F at LaGuardia Airport. This intense thermal event drives the current crowd-implied probability of 65% for the YES outcome on Polymarket, where traders are betting in USDC on the Polygon network using conditional tokens to lock in positions. The market currently prices the 92–93°F range as the frontrunner at 35%, while 87°F or below sits at 18%, reflecting a strong consensus that temperatures will exceed the lower thresholds [1].

Historically, July heat in NYC rarely breaches 95°F, making a 97°F forecast an outlier that justifies the elevated probability. The last time the city hit 100°F was twelve years ago, and recent data shows extreme heat events are becoming more frequent due to shifting climate patterns [3]. The current 65% probability aligns with the National Weather Service’s issuance of an extreme heat watch, suggesting that meteorological models are confident in the persistence of the high-pressure system driving these temperatures [3].

Traders should monitor the weakening of the high-pressure system scheduled after 16 July, as a cold front moving from the west could abruptly drop temperatures into the 80s by 17 July [2]. Key catalysts include real-time updates from Wunderground, the designated resolution source, which will record the official peak temperature for LaGuardia [1]. Any sudden shift in humidity or cloud cover before the settlement window closes at 12:00:00Z on 16 July could alter the final outcome, making live weather feeds essential for managing on-chain exposure [2].

Sources: 1 · 2 · 3 · 4

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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

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.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.