How many days will San Antonio be above 90°F?

Currently, it’s difficult to directly compare the odds in this market to specific analyst forecasts for San Antonio temperatures in September 2026, as long-range weather predictions are inherently uncertain. However, prediction markets often incorporate a wider range of information and perspectives than traditional forecasts, including local knowledge and real-time adjustments based on evolving conditions. This can lead to a different assessment of probability than you might find in a standard meteorological report. The collective wisdom of traders in this market may offer a unique perspective on the likelihood of a prolonged heat wave.

On Kalshi, this market is priced using a continuous double auction, meaning traders buy and sell contracts representing potential outcomes. The price of a contract reflects the market’s implied probability of that outcome occurring. As more traders participate, the price adjusts to reflect the collective assessment of the likelihood of consecutive days above 90°F in San Antonio during the specified week. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s depth and volume indicate the level of confidence and agreement among participants regarding the potential for extreme heat.

This market resolves around Sep 15, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, the resolution will depend on publicly available data from reputable weather sources regarding the average daily temperature in San Antonio, Texas, during the week of September 7, 2026. The number of consecutive days with an average temperature exceeding 90°F will be the determining factor for settlement. Traders will be able to view the resolution details on Kalshi following verification.

Several factors could significantly influence trading activity in this market. Long-range weather forecasts released closer to September 2026 will be closely watched, as will any emerging patterns in global climate indices like El Niño or La Niña. Unexpected heat waves in other parts of the country during the summer of 2026 could also shift sentiment. Additionally, any news regarding changes in urban heat island effects in San Antonio, or advancements in climate modeling, could impact traders’ assessments and move the market price. The overall public perception of climate change and extreme weather events could also play a role.