France Probes Weather Data Glitch After Surge in Polymarket Bets

https://www.bloomberg.com/news/articles/2026-04-23/france-probes-weather-data-glitch-after-surge-in-polymarket-bets

Posted by bloomberg

5 Comments

  1. *From Bloomberg News reporter Joe Wertz*

    France’s forecasting office flagged suspected tampering with weather sensors at the country’s largest airport and referred the case to police, after detecting unusual readings alongside heavy betting on Polymarket.

    Automated temperature readings taken at Meteo France’s weather station at Charles de Gaulle International Airport spiked 4C and 5C unexpectedly in the evenings of April 6 and April 15, respectively, reaching the highest temperature recorded at the site on those days, data from the installation show.

    Readings from the site are important for the safe operation of the airport. They are also used to settle contracts for daily high temperatures on Polymarket, according to information on the website where traders place bets on real-world outcomes.

  2. Shiverproof22 on

    This is wild, actual weather-sensor tampering for a few extra bucks on Polymarket. One easy fix might be delaying the data feed used for settlement by a few hours. Wonder how widespread this already is.

  3. AlleKeskitason on

    The existence of those platforms will bring absolutely nothing good. There are exactly zero reasons why they should be allowed to exist.

    I am slowly starting to think the same about crypto.