Highest temperature in Atlanta on July 13?

Platform comparison

Market context

Atlanta's highest temperature on 13 July 2026 will be measured at Hartsfield-Jackson International Airport and resolved against historical weather records from Wunderground. The settlement window closes at 12:00 UTC on that date, capturing the peak daily temperature recorded at the station. Current crowd-implied probability sits at 0%, suggesting either extreme confidence in a specific temperature band or minimal trading activity on this particular contract.

July in Atlanta typically produces daily highs between 88–92°F, with occasional peaks above 95°F during heat waves. The National Weather Service's 30-year climate normals for the city show a median high of 89°F for mid-July, though the historical record for any July day reaches 100°F. Traders should reference the airport station's actual recorded highs from previous years—data available through Wunderground's historical archives—to calibrate expectations against the resolution bands offered. The 0% probability reading suggests the market may lack sufficient liquidity or that traders have converged on a single outcome with high confidence.

Monitoring the National Weather Service's 10-day forecast issued around 3–5 July 2026 will provide the most actionable signal for atmospheric patterns affecting Atlanta that week. High-pressure systems, tropical moisture intrusion, and jet-stream positioning typically determine whether the region experiences typical summer heat or anomalous conditions. Any significant weather alerts or heat advisories issued in the days preceding 13 July would shift expectations materially. Cross-platform comparison between Polymarket and Kalshi contracts on this date should reveal whether divergent probability assessments reflect genuine disagreement or simply different user bases and liquidity concentrations.

Methodology

This page reviews Highest temperature in Atlanta on July 13? 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 PolyGram, 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 PolyGram. 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.

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.