London weather prediction markets track specific temperature outcomes for a single day. On April 18, this market asks whether London's maximum temperature will reach exactly 17°C. London in mid-April typically experiences temperatures between 8°C and 16°C, though warmer days do occur. The current market odds of 43% for YES suggest traders see meaningful but sub-even probability that the high temperature will hit this exact threshold, while the remaining 57% odds are distributed across all other possible maximum temperatures. The market reflects recent weather patterns and forecasts from the UK Met Office and other meteorological services. The specificity of predicting an exact temperature—rather than a range—makes this market interesting for weather enthusiasts and traders building conviction on seasonal temperature trends for London. With $2,189 in 24-hour volume, the market shows active participation from multiple traders. Traders can profit if the actual high equals 17°C (YES) or differs from it (NO), with resolution dependent on official UK Met Office data for London on April 18. Market prices typically move throughout the day based on updated forecasts.