Highest temperature in San Antonio on May 31, 2026?

On Kalshi, the highest temperature in San Antonio on May 31 is priced as a binary contract: Will the maximum temperature be below 88 degrees? On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders buy or sell shares at prices between 0 and 100 cents, where each cent represents a 1 percent probability. The current market price reflects 100.0% implied probability. As new weather data emerges and the event date nears, prices adjust dynamically based on order flow and trader positioning, allowing participants to hedge or speculate on San Antonio's late-spring temperatures.

The market resolves on Jun 1, 2026, after May 31 concludes and official temperature data becomes available. Resolution hinges on the recorded maximum temperature for that day in San Antonio. The specific measurement source and rounding rules are defined in the contract terms at the time of trading. Once the final high temperature is confirmed, the outcome is determined and all positions settle accordingly. Traders should review the exact resolution criteria before placing bets to ensure clarity on how the temperature will be measured and reported.

Several factors could shift odds for San Antonio's May 31 high temperature. Major weather pattern changes—such as a cold front, heat dome, or tropical system—would trigger significant repricing. Updated seasonal forecasts from meteorological agencies and real-time atmospheric models released closer to the date will influence trader positioning. El Niño or La Niña conditions, longer-term climate anomalies, and historical May temperature records for the region also inform market expectations. As May approaches, daily weather updates and extended forecasts will become primary drivers of price movement on Kalshi.