Highest temperature in NYC on July 6?

Platform comparison

Market context

The underlying event is the peak temperature recorded at LaGuardia Airport on 6 July 2026, measured in degrees Fahrenheit. Historical precedents frame the current 0% crowd-implied probability for the "YES" outcome as a market expectation that the temperature will fall outside the specific range being traded. Just three days prior, on 3 July 2026, the same station recorded a blistering 104°F, shattering its 1966 record of 101°F[1]. This extreme heat lingered into the night, with LaGuardia hitting 94°F at midnight, a new record surpassing the 93°F set in 2013[2]. The current heatwave, intensifying across the East Coast through 5–6 July, has pushed temperatures well above seasonal averages with oppressive humidity and warm overnight lows limiting relief[3].

Traders should monitor the continuation of this heat dome, as weather experts predict the wave will persist for another day or two before a slight drop by 7 July[3]. Key catalysts include the scheduled weather updates for the Northeast corridor and any sudden shifts in humidity or wind patterns that could alter the peak reading. The market is leaning heavily on the immediate forecast trajectory from Wunderground, which will serve as the official resolution source for the LaGuardia station data[4]. Recent campaign-finance disclosures or political announcements regarding climate infrastructure are unlikely to impact the physical weather outcome, making the atmospheric data the sole determinant. The focus remains on whether the heatwave sustains its intensity to breach the specific temperature threshold on the settlement date.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in NYC on July 6? 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 Election Predictions UK provide a 0%-fee route into the same order book.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

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.

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.