Yellow Heat Warning Issued for Entire Luxembourg Territory

Luxembourg's national weather portal, MeteoLux, has issued a yellow weather warning (indicating "potential danger") for high temperatures across Luxembourg on Tuesday 26 May 2026. 

The warning remains in place until Wednesday 27 May at 00:00 in the north of the country, and until Thursday 28 May at 00:00 in the south. 

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