Pronóstico: Highest temperature in Atlanta on July 27?

Platform comparison

Market context

On 27 July 2026, the highest temperature recorded at Hartsfield-Jackson Atlanta International Airport will fall into one of several defined ranges. The settlement hinges on data from Weather Underground's historical records for that specific station, with the market currently pricing all temperature brackets at zero probability—an artefact of the contract's recent deployment rather than a genuine absence of expected heat. Traders are effectively pricing uncertainty about which bracket will resolve true, not whether Atlanta will record a temperature that day.

Atlanta's summer climate provides a stable baseline for contextualising this outcome. The city's July average high sits near 89°F, with historical extremes ranging from 100°F down to the low 80s depending on weather patterns. The National Weather Service data for the region shows that temperatures exceeding 95°F occur in roughly one-third of July days during typical years, whilst readings below 85°F are relatively rare. These distributions should anchor expectations about which brackets carry genuine probability mass rather than treating all outcomes as equally likely.

The primary variable traders should monitor is the Atlantic hurricane season's progression and any tropical systems approaching the Southeast in late July 2026. Moisture-laden systems can suppress afternoon highs, whilst high-pressure systems typically drive temperatures into the mid-to-upper 90s. The National Hurricane Center's forecast track and intensity updates in the week preceding settlement will be critical signals. Additionally, any significant heat dome developing across the Southeast would shift probability towards the higher temperature ranges, whilst unsettled weather patterns would favour cooler outcomes. Real-time monitoring of the 10-day forecast from mid-July onwards will provide the most actionable trading signals.

Methodology

This page reviews Pronóstico: Highest temperature in Atlanta on July 27? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Qué Es, which mirrors the Polymarket order book at 0% fees.

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 Polymarket Qué Es. 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 Polymarket Qué Es trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.