Highest temperature in Beijing on June 15?

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Market context

On 15 June 2026, Beijing's highest temperature will be recorded at the Capital International Airport Station and resolved into a range bracket. The 0% crowd probability suggests traders are either uncertain about which temperature band will occur or have not yet engaged with the market. June sits within Beijing's early summer period, when daily highs typically range between 28–32°C, though heat waves can push readings into the mid-to-high 30s.

Historical June data from Beijing shows considerable year-to-year variation. The city's average high in mid-June hovers around 29–30°C, but extremes have reached 37–38°C during particularly warm years. The 2010 heat wave saw June temperatures spike significantly above normal, whilst cooler patterns in recent years have kept mid-June highs closer to seasonal norms. This variability explains why no single temperature range commands overwhelming consensus; the outcome depends heavily on whether an anticyclonic system dominates or monsoon moisture moderates conditions.

The critical catalyst is the atmospheric pattern developing across East Asia in early-to-mid June 2026. China's meteorological services typically issue extended forecasts 10–14 days ahead, which will clarify whether high-pressure systems or low-pressure troughs influence Beijing during this window. Traders should monitor whether Siberian high-pressure systems extend southward—a pattern that historically correlates with above-normal temperatures—or whether the East Asian summer monsoon establishes itself earlier, suppressing heat. Real-time weather model consensus from major forecast centres will sharpen probability distributions as the date approaches.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On Who Will Win, 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.

Is this market available outside the US?

Who Will Win 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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Who Will Win 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.