Will London's highest temperature reach exactly 15°C on April 20, 2026? Current YES odds: 19%. Trade this live weather prediction market on Polymarket.
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London's weather on April 20, 2026 will be measured against a specific threshold: whether the city's highest temperature for the day reaches exactly 15°C. At current odds of 19%, the market implies traders believe there's an 81% chance the temperature will deviate from this precise point—either warmer or cooler. London in late April typically experiences mild spring conditions, with historical highs ranging from 15–18°C depending on weather patterns and seasonal variation. A 15°C ceiling represents the lower end of typical April temperatures for the city, suggesting traders expect either unseasonably cool conditions or more typical mild spring warmth that exceeds this threshold. The market's probability reflects genuine uncertainty around specific meteorological conditions, including cloud cover, wind patterns, and the broader seasonal variability of spring weather. The 24-hour trading volume of $1,965 indicates moderate interest in this daily weather outcome. Odds may shift as the forecast date approaches and meteorological models become more refined, particularly if weather services update their April 20 predictions with new data. The market resolves at the end of April 20 based on official London temperature records from the Met Office or equivalent source.
The market resolves YES if London's highest temperature on April 20, 2026 reaches exactly 15°C according to official UK meteorological sources. The market expires at the end of April 20, 2026.
Polymarket Trade is an independent third-party interface to the Polymarket CLOB prediction market exchange on Polygon — not affiliated with Polymarket, Inc. Prediction markets aggregate trader expectations into real-time probability estimates. Every market question resolves YES or NO based on a specific event outcome; traders buy shares of the side they believe will resolve positively. Prices range 0¢ (certain no) to 100¢ (certain yes) and naturally reflect the crowd-implied probability of YES. Polymarket Trade is non-custodial — your funds never leave your wallet. Open the full interactive page linked above to place orders, see order book depth, and execute a trade.