France’s weather forecasting service has filed a police complaint after detecting anomalies in its temperature

By: FT

Published: 2026-04-23T16:04:26.690102Z

Last Updated: 2026-08-08T15:26:46.131610Z

Category: World

France's national weather service has launched a police investigation following unusual temperature readings at Paris-Charles de Gaulle airport. These discrepancies surfaced simultaneously with a notable increase in well-timed wagers on Polymarket, a prediction market platform. The unexpected temperature data has raised questions about potential tampering or technical faults. The investigation aims to determine the source of these anomalies and their possible connection to the betting activity. This incident underscores the vulnerability of critical data infrastructure to manipulation, with significant implications for both weather forecasting and financial markets.