TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 10, 2:00 AM EST
Kalshi
This event tracks the highest temperature recorded in San Antonio on July 9, 2026. The outcome will be determined by the official National Weather Service Climatological Report for that date, which provides the daily maximum temperature reading for the city.
Resolution is based on the maximum temperature recorded at San Antonio on July 9, 2026, as reported in the National Weather Service's Climatological Report (Daily). The official data source is accessed through the NWS website at the specified URL, selecting San Antonio with Daily Climate Report. Temperature readings are divided into six ranges: 91°F or below, 92-93°F, 94-95°F, 96-97°F, 98-99°F, and 100°F or above. Each range corresponds to a distinct outcome. Traders should note that preliminary NWS data may be subject to rounding and conversion nuances, and the final official NWS Climatological Report (Daily) serves as the authoritative source, superseding other weather services.
Prediction market odds reflect real-money consensus from traders actively pricing uncertainty, whereas meteorological forecasts from the National Weather Service and private weather services rely on physics-based models and historical climate data. This market aggregates dispersed trader knowledge into a single probability, often capturing late-breaking atmospheric patterns or regional microclimatic factors that traditional forecasts may lag on. Comparing the two reveals whether markets are pricing in more optimism or caution than official guidance, offering traders an alternative lens on July heat expectations for the region.
On Kalshi, this market is priced through an order-book mechanism where traders buy and sell contracts corresponding to different temperature ranges. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each contract represents a binary outcome—either the high temperature falls within a specified band or it does not—and the bid-ask spread reflects real-time supply and demand. As traders adjust positions ahead of the July 9 event, prices shift to equilibrate the market, with the most liquid contracts typically clustering around the most probable outcomes according to current meteorological consensus.
This market resolves around Jul 10, 2026, once the highest temperature recorded in San Antonio on July 9, 2026 is verifiable from credible public sources. The outcome is determined by comparing the official daily high—typically reported by the National Weather Service or equivalent meteorological authority—against the contract thresholds established at market inception. Traders holding contracts aligned with the actual temperature range will be paid out in full, while those on incorrect outcomes receive nothing.
Major weather pattern shifts, seasonal climate anomalies, or updated long-range forecasts from meteorological agencies can significantly reprrice this market. Tropical systems, heat domes, or cold fronts affecting Texas in early July would trigger rapid trader repositioning. Additionally, historical temperature records for San Antonio on that date and broader Southwest heat trends often prompt recalibration of odds. Real-time atmospheric data releases, El Niño or La Niña updates, and any unusual solar or volcanic activity influencing regional climate could all move contract prices as traders reassess the probability of extreme heat.