TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 5, 4:00 AM EST
Kalshi
This event tracks the overnight low temperature in Los Angeles on Independence Day 2026. The minimum temperature will be measured and reported by the National Weather Service's official daily climatological records for Los Angeles Airport.
Resolution is determined by the minimum temperature recorded at Los Angeles on July 4, 2026, according to the National Weather Service's Climatological Report (Daily). The official data source is accessed via the NWS Los Angeles office website under the Observed Weather tab, selecting Los Angeles Airport, CA with Daily Climate Report. Temperature ranges are: 54°F or below, 55-56°F, 57-58°F, 59-60°F, 61-62°F, and 63°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 positions from traders who profit or lose based on accuracy, creating strong incentives for honest forecasting. Traditional meteorological forecasts from the National Weather Service and other agencies rely on physics-based models and historical data. This market aggregates dispersed trader knowledge into a single price signal, which often diverges from official forecasts because markets can incorporate late-breaking information and edge cases that models may underweight. Comparing the two reveals where the crowd sees risk differently than institutional forecasters.
On Kalshi, this market is priced through an order-book mechanism where traders buy and sell shares corresponding to different temperature ranges. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each outcome contract reflects the probability traders assign to that range occurring, with the price ranging from near zero to near 100 cents per share. As new information emerges—weather model updates, seasonal patterns, or real-time atmospheric data—traders adjust their positions, moving prices up or down. The spread between bid and ask prices tightens as the event date approaches and uncertainty narrows.
This market resolves around Jul 5, 2026, once July 4th, 2026 has passed and the lowest temperature for that day in Los Angeles is verifiable from credible public sources. The outcome is determined by comparing actual recorded temperatures against the outcome ranges defined in the market. Resolution typically occurs within hours of the close of the trading day following the event, allowing traders to settle their positions. Verification relies on established meteorological data from recognized weather monitoring stations in the Los Angeles area.
Major weather pattern shifts, seasonal climate anomalies, and updated long-range forecasts from meteorological agencies can significantly influence trader positioning. El Niño or La Niña developments, unusual jet stream configurations, or heat dome formations would all prompt repricing. As July 4th approaches, medium-range forecasts become more reliable, typically causing volatility to spike in the final week. Real-time atmospheric data releases, unexpected cold fronts, or marine layer intensity changes closer to the date could trigger sharp moves. Traders also monitor historical temperature records and typical July weather patterns for Los Angeles.