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 3, 2:00 AM EST
Kalshi
This market tracks the overnight low temperature in Houston on July 2, 2026. The outcome will be determined by the official National Weather Service daily climatological report for the Houston-Hobby area, which records the minimum temperature reached during that calendar day.
Resolution is based on the minimum temperature recorded at Houston-Hobby on July 2, 2026, as reported in the National Weather Service's Climatological Report (Daily) for Houston, TX. The official data source is accessed via the NWS Regional Headquarters website under the Observed Weather tab. Temperature ranges are divided into six categorical bands: 71°F or below, 72-73°F, 74-75°F, 76-77°F, 78-79°F, and 80°F or above. Each temperature range corresponds to a distinct market outcome. Traders should note that preliminary NWS data may be subject to rounding and conversion nuances, and the final official report should be used for resolution rather than real-time or third-party weather services.
Prediction market odds often diverge from traditional meteorological forecasts because traders incorporate real-time data, model updates, and longer-term climate patterns into their positions. While weather analysts rely on deterministic models and historical averages, this market prices in trader uncertainty and tail-risk scenarios. Over time, prediction markets have proven competitive with or superior to consensus forecasts for binary outcomes, particularly when traders have financial incentives to be accurate and access to diverse information sources.
On Kalshi, this market is priced through a continuous order-book mechanism where buyers and sellers post bids and offers on temperature outcome ranges. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders profit by correctly predicting whether the low will fall into their chosen bracket, and the market price reflects the marginal probability implied by the most recent trades. As new weather data or seasonal trends emerge, traders adjust positions, causing the odds to shift in real time.
This market resolves around Jul 3, 2026, once the lowest temperature recorded in Houston on July 2, 2026 is verified and finalized. The outcome is confirmed against credible public sources, ensuring accuracy and fairness for all traders. Resolution typically occurs within hours of the market end date, allowing traders to settle positions and collect winnings based on the actual temperature reading.
Major weather pattern shifts, updated seasonal climate forecasts, and long-range model consensus changes will drive significant price movement in this market. El Niño or La Niña transitions, shifts in the jet stream, and anomalous heat or cold patterns across North America can all influence Houston's July temperatures. Additionally, as summer 2026 approaches, near-term forecasts and real-time atmospheric data will become increasingly important, potentially triggering sharp repricing as traders react to new meteorological information.