TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 7, 1:00 AM EST
Kalshi
This market tracks the lowest temperature recorded in Philadelphia on July 6, 2026. The outcome will be determined by the official National Weather Service daily climatological report for Philadelphia, which provides the authoritative minimum temperature measurement for that date.
Resolution is based on the minimum temperature recorded at Philadelphia, Pennsylvania on July 6, 2026, as reported in the National Weather Service's Climatological Report (Daily). The official data source is accessed through the NWS website by navigating to the "Observed Weather" tab and selecting "Philadelphia, PA" with Daily Climate Report. The temperature is divided into six ranges: 63°F or below, 64-65°F, 66-67°F, 68-69°F, 70-71°F, and 72°F or above. Each 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 preliminary estimates or third-party weather services.
Prediction market odds often diverge from traditional meteorologist forecasts because they incorporate real-time trader positioning, risk appetite, and forward-looking uncertainty. While weather analysts rely on numerical models and historical patterns, this market prices in the full distribution of possible outcomes and trader disagreement. Markets tend to be more cautious or aggressive than consensus depending on recent volatility and event salience. Comparing the implied probability here to published seasonal temperature ranges and expert predictions can reveal where traders see asymmetric risk or opportunity.
On Kalshi, this market is priced through continuous order-book matching, where buyers and sellers set bids and asks on 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 the lowest temperature or by identifying mispricing relative to their own weather forecasts. The platform's matching engine executes trades at the best available price, and the mid-market price at any moment reflects the marginal trader's view. Liquidity and spreads vary with trading volume and proximity to the resolution date.
This market resolves around Jul 7, 2026, once the lowest temperature recorded in Philadelphia on July 6, 2026 is verified against credible public sources. The outcome is determined by official meteorological data, typically from the National Weather Service or equivalent authoritative weather station records for the Philadelphia area. Traders' positions settle based on whether the actual low temperature falls into their predicted range. Resolution is final once the data is confirmed and published.
Major weather pattern shifts, updated seasonal forecasts, and atmospheric anomalies—such as unexpected cold fronts or heat domes—can significantly move this market. Long-range climate indices, El Niño or La Niña conditions, and historical temperature comparisons for early July in Philadelphia all influence trader positioning. As the event date approaches, short-range weather models become more reliable and can trigger sharp repricing. Breaking news about extreme weather systems or climate events elsewhere may also shift trader risk appetite and hedging demand.