TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 1, 1:00 AM EST
Kalshi
This market tracks the lowest temperature recorded in Philadelphia on June 30, 2026. The outcome will be determined by the National Weather Service's official 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, PA on June 30, 2026, as reported in the National Weather Service's Climatological Report (Daily). The official data source is accessed via the NWS Eastern Region Climate portal under the Philadelphia, PA location. Temperature ranges are divided into six bands: 59°F or below, 60-61°F, 62-63°F, 64-65°F, 66-67°F, and 68°F or above. Each band 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. While secondary sources like AccuWeather or Google Weather may provide guidance, only the NWS Climatological Report (Daily) serves as the authoritative resolution source.
Prediction market odds reflect real-money trader consensus and often incorporate meteorological forecasts, historical temperature patterns, and climate models faster than traditional analyst reports update. While weather services and climate analysts publish seasonal outlooks and daily forecasts, this market aggregates those signals through the price mechanism—traders who accurately predict the low temperature profit, creating strong incentives for accuracy. Over time, prediction markets tend to converge toward verifiable outcomes, sometimes outperforming single-source forecasts by incorporating diverse information and correcting for systematic biases.
On Kalshi, this market is priced through a continuous order-book mechanism where traders buy and sell shares corresponding to different temperature ranges or outcomes. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The bid-ask spread reflects the market's confidence in each outcome; tighter spreads indicate higher certainty, while wider spreads suggest uncertainty. As new weather data, seasonal forecasts, or climate patterns emerge, traders adjust their positions, moving the price up or down to reflect changing probabilities of the lowest temperature falling within each range on June 30, 2026.
This market resolves around Jul 1, 2026, once the lowest temperature recorded in Philadelphia on June 30, 2026 is confirmed and verifiable from credible public sources. The outcome is determined by the actual meteorological data for that date, typically sourced from official weather stations or recognized climate databases. Your position settles based on whether the recorded low falls within the outcome range you selected, with payouts distributed once the event is finalized and verified.
Major climate patterns, seasonal forecasts, and long-range weather models will drive significant price shifts in this market. El Niño or La Niña conditions, shifts in the jet stream, and updated seasonal outlooks from meteorological agencies can reshape trader expectations for June temperatures. As 2026 approaches, near-term forecasts become more precise, typically narrowing the range of likely outcomes. Additionally, historical anomalies—such as unusual heat waves or cold snaps in prior years—and broader climate trends may influence how traders price the probability of extreme lows on that specific date.