This market tracks whether Warsaw will experience a daily high temperature of exactly 9°C on April 20, 2026. Warsaw in mid-April typically sees temperatures ranging from 7°C to 15°C as spring weather patterns transition across Central Europe. The question hinges on precise meteorological measurement of the day's maximum temperature. Currently trading at 0% odds, the market reflects trader assessments that hitting exactly 9°C is extremely unlikely, as weather variations and seasonal forecasts typically suggest a broader range. The resolution depends on official weather data from a recognized meteorological authority serving Warsaw, with the market settling at market close on April 20. Recent trading volume of $611 over 24 hours indicates modest participation, though the $5,240 liquidity provides clarity on available odds. The 0% pricing suggests traders anticipate temperatures will deviate significantly from this precise threshold, whether warmer or cooler than 9°C. Weather markets like this reflect collective forecasting based on historical patterns, seasonal trends, and real-time atmospheric conditions that shape daily temperature outcomes across European cities.