TOTAL VOLUME:
$154.8b
24H VOL:
$277,138,640
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,905,404,943
412,077
Markets across
39,838
events
MATCHED EVENTS:
4,526
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 19, 1:00 AM EST
Kalshi
This event assesses whether measurable rainfall will occur in various major U.S. cities over a specific weekend. Each location has its own criteria for determining a positive outcome based on precipitation data.
Each market evaluates whether any measurable precipitation occurs in a specified U.S. city during the weekend of October 17–18, 2026. For a market to resolve as 'Yes,' the total precipitation recorded at the official weather station for that city must exceed zero inches on at least one day within the period. 'Trace' amounts or missing data are counted as zero. The Weather Company provides the official data, and all markets share this consistent methodology, ensuring uniform application across locations. The resolution hinges solely on objective meteorological measurements rather than forecasts or estimates.
On Kalshi, this market is priced using a continuous double auction, meaning traders buy and sell contracts representing different outcomes. The price of each contract reflects the market’s current expectation of that outcome’s probability. As more traders participate, the prices adjust to reflect the evolving consensus. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market depth shows how many contracts are available at different price points, indicating the level of demand and supply. This dynamic pricing mechanism allows for a real-time assessment of the likelihood of rain this weekend.
This market resolves around Oct 20, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, the resolution will be based on whether measurable precipitation is recorded in the designated locations during the specified timeframe. The determination will rely on official weather data and reports from recognized meteorological sources. The outcome of this market will reflect whether it rained in the locations specified during the weekend of October 17th and 18th, 2026.
Several signals could significantly impact this market. Changes in long-range weather forecasts, particularly those from the National Weather Service, will be closely watched. Unexpected shifts in jet stream patterns or the development of a coastal storm system could dramatically alter the probability of rain. Additionally, any announcements regarding potential weather-related disruptions, like hurricane warnings or severe weather advisories, could influence trading activity. Even local news reports highlighting changing conditions could move the market as traders react to the latest information.