Highest temperature in Dallas on July 16?

Platform comparison

Market context

Dallas recorded its peak heat for 16 July 2026 at the Love Field Station, with the market now locking in the 88–89°F range as the definitive outcome. The crowd-implied probability for any outcome outside this band sits at 0% YES, reflecting a near-total consensus that temperatures will not breach 90°F or dip below 88°F. This unanimity is unusual for summer weather markets, where volatility typically keeps probabilities fluid until settlement.

Historically, mid-July in Dallas sees average highs near 96°F, making the current 88–89°F consensus a significant underdog relative to the 30-year norm. Records for 16 July show extremes ranging from 77°F in cooler years to 106°F during heatwaves, suggesting the current pricing ignores the full volatility spectrum. The 0% probability on lower or higher ranges implies traders are betting on a rare, stable cool spell, creating a potential value spot for contrarians who believe the market is overreacting to short-term cloud cover or rain forecasts.

Traders should monitor the National Weather Service’s 7-day forecast for the Dallas-Fort Worth metroplex, particularly any updates on high-pressure system persistence or incoming moisture from the Gulf. A recent report from Extreme Weather Watch notes a 15.5% chance of precipitation on 16 July, which could suppress temperatures if clouds develop early [2]. If the forecast shifts to indicate a stronger heat dome, the 88–89°F line may become vulnerable, offering an entry point for those betting on a return to typical July heat.

Sources: 1 · 2

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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 Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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.