Highest temperature in Atlanta on May 24?

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Market context

The market is pricing the highest temperature recorded at Atlanta's Hartsfield-Jackson International Airport on 24 May 2026 at 0% probability across all temperature ranges, suggesting either a data or settlement concern rather than a genuine weather forecast. The settlement window closes at noon UTC on that date, creating a tight window for finalising the official reading from Weather Underground's historical records.

Atlanta's May temperatures typically range from 75°F to 88°F, with the airport station recording highs between 80°F and 90°F in most years. Historical data shows May 24th specifically has seen highs of 87°F (2019), 82°F (2018), and 85°F (2017). The 0% crowd probability across all ranges is anomalous given that some outcome must occur; this suggests traders may be waiting for clarification on settlement mechanics or the market structure itself, rather than reflecting genuine uncertainty about whether Atlanta will experience measurable temperatures that day.

The key dependency is whether the market's resolution mechanism will function correctly once the date arrives. Traders should verify that Weather Underground's historical data for KATL station updates reliably by the settlement deadline, and whether the market's range brackets align with plausible outcomes. Late May in Atlanta typically brings warm, humid conditions with occasional thunderstorms, but no extreme heat events are historically concentrated around this specific date. The contrarian angle sits in recognising that the 0% reading likely reflects a technical or structural issue rather than genuine pricing, making the actual temperature outcome—whatever range it falls into—a near-certainty to resolve once data becomes available.

Methodology

This page reviews Highest temperature in Atlanta on May 24? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at PolyGram — the application we operate, where you trade directly against 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?

On PolyGram, which mirrors the Polymarket order book at 0% fees. 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.

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?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.

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.