Polymarket$2.37BOIOpen interest: sum of pool liquidity across all active markets, reported by the Polymarket API.
Kalshi$352.24MOIOpen interest: total contracts outstanding across all active markets, reported by the Kalshi API.
Limitless$18.97MOIOpen interest: estimated from total volume traded (USDC). Limitless does not report a separate OI metric.Real-money weather forecasts from prediction markets. 173 active markets across 37 cities.
8 active weather markets
7 active weather markets
7 active weather markets
7 active weather markets
7 active weather markets
6 active weather markets
6 active weather markets
6 active weather markets
6 active weather markets
6 active weather markets
5 active weather markets
5 active weather markets
5 active weather markets
5 active weather markets
5 active weather markets
5 active weather markets
5 active weather markets
5 active weather markets
5 active weather markets
5 active weather markets
5 active weather markets
4 active weather markets
4 active weather markets
4 active weather markets
2 active weather markets
2 active weather markets
2 active weather markets
2 active weather markets
2 active weather markets
1 active weather market
1 active weather market
1 active weather market
1 active weather market
1 active weather market
1 active weather market
1 active weather market
1 active weather market
22 active weather markets
Weather prediction markets let traders buy and sell contracts on future weather outcomes — temperature thresholds, rainfall, snowfall, and more. Prices reflect the market's probability estimate for each outcome, creating a crowd-sourced weather forecast backed by real money.
Unlike traditional weather forecasts from the National Weather Service or private providers, prediction market forecasts aggregate information from many participants who have financial incentives to be accurate. This "wisdom of crowds" approach can surface local knowledge and contrarian views that automated models might miss.
Most weather prediction markets are listed on Kalshi, a CFTC-regulated exchange. Markets typically cover a 3-10 day forecast window and resolve based on official weather station data. PredictMarketCap tracks all active weather markets and organizes them by city and weather type so you can quickly find the forecast you're looking for.
