Highest temperature in Atlanta on May 22?

Platform comparison

Active sub-markets

Market context

Atlanta’s official high for 22 May will be taken from the Hartsfield-Jackson International Airport station, with settlement driven by the final Wunderground record once the day closes. With the crowd-implied probability showing 0% for a “YES” outcome, the market is effectively pricing the current temperature band as outside the selected contract range rather than merely unlikely. For context, late-May Atlanta typically sits in the low 80s Fahrenheit, and nearby comparable days have recently been forecast in the mid-80s rather than the high 80s or above, which is the sort of spread that usually determines whether a temperature market lands in a lower bucket or one of the upper bands.

The regulatory frame matters because access is not uniform. For German users, GlüStV restrictions can apply to prediction markets depending on structure and local interpretation, so availability and use may be limited. In the US, the CFTC’s reach is relevant where a contract is treated as a derivative or event market tied to weather data. “No-KYC up to $1,500” means a user may be able to transact without full identity verification until cumulative activity crosses that threshold, but it does not remove jurisdictional or tax obligations, and it does not guarantee access from every region.

For traders, the key catalysts are the day’s actual temperature path, cloud cover, and any Atlanta-area weather changes before the station finalises its reading. National Weather Service and private forecasts can shift materially if a warm front, wind shift, or heavier afternoon sunshine develops, while rainfall or persistent cloud cover can keep the high down. The main dependency is simple: the contract resolves on the recorded airport maximum, not on broader metro averages or forecast highs, so even a modest change in the day’s peak timing can affect the final bucket.

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Methodology

This page reviews Highest temperature in Atlanta on May 22? 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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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 it cost to trade on PolyGram?

Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.