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Highest temperature in Seoul on June 20?

How the prediction-market book is pricing "Highest temperature in Seoul on June 20?" right now, with a side-by-side platform comparison and zero-fee CTAs.

14% YES 86% NO Volume: $188K Liquidity: $80K Closes: 20 Jun 2026
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Highest temperature in Seoul on June 20?

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Prediction Today Pick
polygram.ink
14% 86% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Open on Prediction Today →
Polymarket
polymarket.com
14% 86% 0% Geo-blocked in US/UK/EU USDC, on-chain Open on Prediction Today →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Open on Prediction Today →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Open on Prediction Today →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Open on Prediction Today →

Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Prediction Today.

Active sub-markets

25°C14% YES86% NO
26°C0% YES100% NO
27°C0% YES100% NO
21°C or below0% YES100% NO
22°C0% YES100% NO
23°C0% YES100% NO

Market context

The Highest temperature in Seoul on June 20? prediction market currently prices this outcome at 14% YES. This market will resolve to the temperature range that contains the highest temperature recorded at the Incheon Intl Airport Station in degrees Celsius on 20 Jun '26. The resolution source for this m…

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Today, which mirrors the Polymarket order book directly.

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

Is this market available outside the US?
Prediction Today 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.
What's the difference between YES and NO shares?
A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
What does it cost to trade on Prediction Today?
Zero. Prediction Today 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, Prediction Today 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.
and

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