Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Kalshi Legal in California) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 82-83°F | 100% |
| 73°F or below | 0% |
| 74-75°F | 0% |
| 76-77°F | 0% |
| 78-79°F | 0% |
| 80-81°F | 0% |
| 84-85°F | 0% |
| 86-87°F | 0% |
| 88-89°F | 0% |
| 90-91°F | 0% |
| 92°F or higher | 0% |
Market context
On 13 July 2026, the highest temperature recorded at Hartsfield-Jackson Atlanta International Airport will determine which range this market resolves to. The National Weather Service operates the official station at KATL, and historical data from Weather Underground will serve as the settlement source. Atlanta's July climate typically produces daily highs between 88 and 94 degrees Fahrenheit, though heat domes and tropical systems can push readings into the upper 90s or occasionally above 100 degrees.
The 0% crowd probability reflects the market's current state rather than meteorological likelihood; such extreme skew often appears in weather markets during the settlement window when outcomes become observable fact rather than forecast. Comparable July temperature ranges in Atlanta show that readings above 95 degrees occur in roughly 15–20% of years, whilst readings below 85 degrees are rare. The National Weather Service issues heat advisories when heat index values exceed 103 degrees, which can shift trader positioning if such warnings are issued in early July 2026.
From a regulatory standpoint, this market operates under differing frameworks depending on trader jurisdiction. US-based traders face CFTC oversight of prediction markets, though certain platforms maintain exemptions for event contracts. The German GlüStV (gambling licensing statute) treats prediction markets as wagering products, requiring specific licensing. Many platforms offer no-KYC access up to $1,500 notional exposure per market, allowing retail participation without identity verification below that threshold, though this accessibility varies by operator and jurisdiction. Traders should verify their local regulatory environment before engaging.
Methodology
This overview of Highest temperature in Atlanta on July 13? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- How are winnings taxed?
- Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. Is Kalshi Legal in California stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.
- What happens during a tax audit?
- You're responsible for documenting your trades. Is Kalshi Legal in California exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Is Kalshi Legal in California would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
Trade Highest temperature in Atlanta on July 13? on Is Kalshi Legal in California
Live order book, 0% fees, USDC settlement in seconds.
Open live market →