How many days will Las Vegas be above 90°F?

Currently, it's difficult to directly compare the odds offered in this market to specific analyst forecasts for Las Vegas temperatures in October 2026. Traditional weather forecasts provide probabilities for exceeding a certain temperature on any given day, but they don’t directly translate to a prediction about the *consecutive* number of days above 90°F. This market aggregates the informed opinions of many traders, potentially offering a different perspective than a single analyst’s prediction, particularly regarding the likelihood of an extended heatwave. The market’s price reflects a collective assessment of all available information.

On Kalshi, this market is priced using a continuous double auction, meaning traders can buy and sell contracts at any time, setting their own prices. The price of a contract represents the probability of that specific outcome occurring. As more traders participate and new information becomes available, the price will fluctuate to reflect the evolving consensus. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price is determined solely by supply and demand among traders on Kalshi, and is not influenced by external factors or predetermined values.

This market resolves around Oct 13, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the average daily temperature in Las Vegas, as recorded by a reputable meteorological source, for each day of the week beginning October 5, 2026. The number of consecutive days exceeding 90°F will be counted to determine the winning outcome in this market, and contracts will be settled accordingly. The exact data source will be determined by Kalshi prior to resolution.

Several factors could influence trading activity in this market over the next two years. Long-range weather forecasts released closer to October 2026 will likely have a significant impact, as will any observed climate patterns suggesting a higher or lower probability of a heatwave. Unexpected changes in global weather patterns, such as a strong El Niño or La Niña event, could also shift expectations. News reports about infrastructure preparedness for extreme heat in Las Vegas, or any announcements regarding water conservation efforts, might also influence traders’ assessments and move the market.