TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 11, 2:00 AM EST
Kalshi
The maximum temperature in San Antonio on June 10, 2026 will be recorded by the National Weather Service according to their daily climatological report.
Prediction market odds on Kalshi often diverge from traditional weather analyst forecasts because markets incorporate real-time trader sentiment and a broader range of information. While meteorologists issue deterministic point forecasts or narrow ranges based on atmospheric models, prediction markets aggregate the beliefs of many participants with financial incentives to be accurate. Comparing the market's implied probability distribution to the National Weather Service or private weather services can reveal where traders expect surprises or where consensus is strongest. This comparison helps identify potential value in the market.
On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Kalshi, the highest temperature in San Antonio on June 10, 2026 is priced as a set of binary or range-based contracts, each representing a specific temperature threshold or band. Traders buy and sell shares at prices between 0 and 100 cents, where the price reflects the market's estimated probability of that outcome occurring. The platform uses continuous order-book matching, so prices adjust in real time as new trades execute. You can view the full order book to see where buyers and sellers are positioned across different temperature ranges.
The market resolves on Jun 11, 2026, after the trading day in San Antonio concludes and the final high temperature is recorded. The outcome is determined by the official highest temperature reading for that calendar day in San Antonio. Once the data is confirmed and published, the market settles based on which outcome bracket or contract the actual temperature falls into. Traders holding shares in the correct outcome receive their payout, while incorrect positions expire worthless.
Major weather pattern shifts, tropical systems, or high-pressure systems developing over Texas could significantly move the market. Updated seasonal forecasts, climate indices like the El Niño or La Niña phase, and historical analogs for early June in San Antonio will influence trader positioning. As June 10 approaches, short-range weather models become more reliable, typically causing price convergence toward the meteorological consensus. Real-time atmospheric data, upper-level wind patterns, and soil moisture anomalies can also trigger repricing. Breaking news about unusual weather systems weeks in advance may shift long-term expectations.