TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 26, 4:00 AM EST
Kalshi
This event tracks the highest temperature recorded in Las Vegas on June 25, 2026. The actual temperature will be measured and reported by the National Weather Service, with resolution determined by which temperature range the recorded high falls into.
Resolution is determined by the maximum temperature recorded at Las Vegas, NV on June 25, 2026, as reported in the National Weather Service's Climatological Report (Daily). The official data source is accessed through the NWS Climate portal for Las Vegas. Temperature ranges are: 102°F or below, 103-104°F, 105-106°F, 107-108°F, 109-110°F, and 111°F or above. Each range corresponds to a distinct market outcome. Traders should note that preliminary NWS data may be subject to rounding and conversion nuances, and the final official NWS Climatological Report (Daily) is the authoritative source for resolution, not preliminary reports or third-party weather services.
Prediction market odds often diverge from traditional meteorologist forecasts because they incorporate real-time trader behavior, economic incentives, and crowdsourced expectations. While weather analysts rely on physics-based models and historical climate data, this market aggregates the collective judgment of participants betting real money on the outcome. Traders may price in tail risks, seasonal anomalies, or long-range climate signals that formal forecasts downweight. Comparing the implied probabilities here to published analyst predictions can reveal where market participants see value or disagreement with conventional wisdom.
On Kalshi, this market is priced through a continuous order-book mechanism where traders submit bids and asks for shares tied to specific temperature ranges or outcomes. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Prices reflect the marginal buyer and seller at any moment, so as new information arrives—updated climate forecasts, seasonal trends, or historical precedent—the odds shift to equilibrate supply and demand. Shares are fractional, allowing precise positioning, and the platform's matching engine ensures transparent price discovery throughout the trading window.
This market resolves around Jun 26, 2026, once the highest temperature recorded in Las Vegas on June 25, 2026 is verified and finalized. The outcome is confirmed against credible public sources documenting the actual weather event. Traders holding shares in the correct outcome receive their payout based on the final verified temperature reading. Until that date, positions remain open and prices continue to adjust as new information and forecasts emerge.
Major catalysts include updated seasonal climate forecasts, El Niño or La Niña patterns, long-range weather models showing heat anomalies, and historical temperature records for late June in the Southwest. Real-time developments—such as early summer heat waves, atmospheric blocking patterns, or shifts in jet-stream behavior—can rapidly reprrice expectations. Additionally, any revisions to climate normals or publication of new meteorological data will influence trader positioning. As June 2026 approaches, short-range forecasts become more precise and typically trigger sharper price moves in this market.