Credit: MeteoLux

Luxembourg’s national weather portal, MeteoLux, has issued a yellow weather warning, indicating “potential danger”, for high temperatures in southern Luxembourg from Wednesday 27 May until Friday 29 May 2026 at 00:00.

Forecast temperatures are expected to reach between 30°C and 32°C in the south of the country on Wednesday afternoon, while temperatures in northern Luxembourg are forecast to range between 28°C and 30°C.

According to MeteoLux, moderate heat stress is expected, with fatigue and heat exhaustion possible during prolonged exposure or physical activity.