TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 14, 4:00 AM EST
Kalshi
This market tracks the highest temperature recorded in Las Vegas on June 13, 2026. The outcome will be determined by the official National Weather Service daily climatological report for that date, which provides the authoritative maximum temperature measurement for the city.
Resolution is based on the maximum temperature recorded at Las Vegas, NV on June 13, 2026, as reported in the National Weather Service's Climatological Report (Daily). The official data source is accessed through the NWS website at the provided URL, selecting the "Observed Weather" tab and "Las Vegas, NV" location with Daily Climate Report. Traders should note that preliminary NWS data may be subject to rounding and conversion nuances, and the final official report should be used for resolution. While other weather sources like AccuWeather or Google Weather may provide guidance, only the NWS Climatological Report (Daily) serves as the authoritative source for determining the outcome.
Prediction market odds often diverge from traditional weather analyst forecasts because they reflect real-money incentives and crowd wisdom rather than a single model's output. While meteorologists rely on physics-based simulations and historical patterns, traders in this market incorporate diverse data sources, long-range climate trends, and their own risk assessments. Over time, prediction markets have proven competitive with or superior to expert forecasts on weather outcomes, especially when many informed participants actively trade. Comparing the odds here to National Weather Service or other official forecasts can reveal where market participants see different probabilities.
On Kalshi, this market is priced through a continuous order-book mechanism where buyers and sellers submit bids and asks for different temperature outcome ranges. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The platform matches trades in real time, and the mid-market price reflects the consensus probability at any given moment. As new weather data, seasonal patterns, or climate models are released, traders adjust their positions, causing prices to shift. This dynamic pricing ensures the market continuously incorporates fresh information and represents the most up-to-date collective forecast for the highest temperature on that date.
This market resolves around Jun 14, 2026, once June 13, 2026 has passed and the day's weather data is finalized. The outcome is determined by the verified highest temperature recorded in Las Vegas on that date, confirmed against credible public sources such as official weather stations or meteorological records. Once the actual peak temperature is established and reported, the market settles automatically, and traders' positions are paid out according to which outcome bracket they backed. The resolution process is straightforward and relies on objective, publicly available temperature data.
Several factors could shift odds in this market over the coming months. Long-range climate forecasts, seasonal anomalies, and El Niño or La Niña patterns influence summer temperatures in the Southwest. Major weather model updates from institutions like NOAA or the European Centre for Medium-Range Weather Forecasts often trigger trading activity. Historical heat waves, urban heat island effects, and even volcanic or solar activity can influence seasonal temperature expectations. As June 2026 approaches, near-term forecasts become more reliable, typically narrowing the range of likely outcomes and concentrating trading around the most probable temperature bands.