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

Currently, prediction market odds reflect the collective wisdom of traders on Kalshi. It's often observed that these odds can diverge from initial analyst forecasts, especially as new information becomes available and traders react to changing conditions. While analysts might provide a baseline probability based on historical data and climate models, this market incorporates a more dynamic assessment, potentially factoring in unforeseen weather patterns or localized effects. Comparing this market to expert opinions can reveal where the crowd disagrees with conventional wisdom regarding the likelihood of a prolonged heat wave in San Antonio.

On Kalshi, this market is priced using a continuous double auction, meaning traders set the odds by placing buy and sell orders for contracts. The price of a contract represents the probability of the event occurring, scaled to a value between 0 and 100. As more traders participate, the price converges towards what the market believes is the true probability. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market depth, visible on the dashboard, shows the volume of contracts available at different price points, indicating the level of conviction among traders. This dynamic pricing mechanism allows for a real-time assessment of the heat wave’s potential.

This market resolves around Oct 13, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, the resolution will be based on publicly available data from a reputable weather source documenting the consecutive days of average temperature exceeding 90°F in San Antonio during the specified week. The data will need to demonstrate a clear and consistent pattern of temperatures above the threshold to determine the outcome of this market. Traders should monitor official weather reports as the resolution date approaches to understand the likely outcome.

Several signals could significantly impact this market. Long-range weather forecasts released in the months leading up to October 2026 will be closely watched. Unexpected shifts in climate patterns, such as the development of a strong high-pressure system over Texas, could increase the probability of a heat wave. Conversely, forecasts predicting increased cloud cover or rainfall would likely lower the odds. News reports regarding drought conditions in the region or any unusual atmospheric phenomena could also influence trading activity and move this market. Monitoring these factors will be key to understanding potential price fluctuations.