TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 29, 3:00 AM EST
Kalshi
This market tracks the lowest overnight temperature recorded in Denver on June 28, 2026. The outcome is determined by the official National Weather Service Climatological Report (Daily) for that date, which provides the minimum temperature reading for the city.
Resolution is based on the minimum temperature recorded at Denver on June 28, 2026, as reported in the National Weather Service's Climatological Report (Daily), accessible via the Boulder NWS office. The official data source is the NWS Daily Climate Report, not preliminary reports or third-party weather services. Temperature readings are categorized into six ranges: 55°F or below, 56-57°F, 58-59°F, 60-61°F, 62-63°F, and 64°F or above. Each range corresponds to a distinct market outcome. Traders should be aware that preliminary NWS data may be subject to rounding and conversion nuances, and should use the final published Daily Climate Report for the specified date.
Prediction market odds often diverge from traditional weather analyst forecasts because they incorporate real-time trader behavior, uncertainty premiums, and forward-looking sentiment. While meteorologists issue point estimates or narrow ranges based on atmospheric models, this market reflects the aggregated beliefs of many participants with financial stakes in the outcome. Traders may price in tail risks or model uncertainty that analysts downplay, or conversely, may discount low-probability extremes. Comparing market odds to published forecasts from the National Weather Service or private meteorological firms can reveal where collective market opinion differs from expert consensus, offering insight into perceived forecast confidence and tail-risk pricing.
On Kalshi, this market is priced through a continuous order-book mechanism where traders submit bids and asks for shares tied to each temperature outcome. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Prices move in real time as supply and demand shift, with the spread between bid and ask reflecting liquidity and uncertainty. Each outcome contract trades independently, and the sum of all outcome probabilities implied by share prices typically equals 100 percent. Traders profit by correctly predicting the lowest temperature, with payouts determined by which outcome range the actual low falls into on the settlement date.
This market resolves around Jun 29, 2026, after the lowest temperature in Denver on June 28, 2026 has been recorded and verified. The outcome is determined by comparing the actual low temperature to the predefined outcome ranges offered in the market. Once the event is verifiable from credible public reporting, the market settles and winning shares are paid out according to which range the temperature fell into. Traders should monitor official weather data sources as the resolution date approaches to track how conditions align with market expectations.
Major weather pattern shifts, updated seasonal forecasts, and atmospheric anomalies can significantly move this market. Tropical systems, heat waves, or cold fronts affecting the Rocky Mountain region in late June would trigger repricing as traders adjust their forecasts. Climate indices such as the North Atlantic Oscillation or Pacific jet stream positioning may influence longer-term expectations. As June 2026 approaches, short-range model consensus will tighten, typically reducing volatility. Real-time weather alerts, model consensus changes, and any unusual atmospheric developments will drive trader activity and price adjustments leading up to resolution.