TOTAL VOLUME:
$154.4b
24H VOL:
$290,393,159
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,944,100,805
420,493
Markets across
40,511
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 12, 4:00 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 10–11, 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 inches and therefore do not satisfy the condition. All markets rely on data provided by The Weather Company via weather.com/kalshi as the definitive source, ensuring consistency across all locations despite variations in consumer weather services. The resolution hinges solely on objective, numerical precipitation measurements rather than qualitative weather forecasts.
Often, prediction market odds offer a different perspective than traditional analyst forecasts. While analysts rely on models and historical data, this market reflects the aggregated predictions of a diverse group of individuals, potentially incorporating real-time information and subjective factors. If current forecasts from meteorologists predict a 60% chance of rain, it’s valuable to see if this market assigns a higher or lower probability, indicating where the crowd disagrees or has additional insights. This comparison can reveal valuable information about the uncertainty surrounding the event.
On Kalshi, this market is priced using a continuous double auction, meaning traders can buy and sell contracts representing different outcomes. The price of each contract reflects the market’s implied probability of that outcome occurring. As more traders buy contracts for a specific location to experience rain, the price increases, and the implied probability rises. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market dynamically adjusts to new information and changing sentiment, providing a real-time assessment of the likelihood of rainfall across different areas this weekend.
This market resolves around Oct 13, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, the resolution will depend on whether measurable rainfall – generally defined as 0.01 inches or more – is recorded at designated weather stations in the specified locations during the weekend. The determination will be based on official weather data, ensuring an objective and transparent outcome for this market. The results will be publicly available following the resolution date.
Several signals could significantly impact this market before it resolves. Updates from the National Weather Service, including changes to storm tracks or intensity forecasts, will likely cause price fluctuations. Unexpected shifts in weather patterns, such as a sudden development of a low-pressure system, could also drive movement. Even localized factors, like reports of early rainfall in certain areas, could influence traders’ perceptions and adjust the odds. Monitoring these developments will be key to understanding how this market evolves leading up to Oct 13, 2026.