Thunderstorms expectedSouthern Luxembourg under yellow heat alert as temperatures start to ease

RTL Today
Only southern Luxembourg remains under a yellow heat warning on Sunday as temperatures ease, with thunderstorms expected during the second half of the day.
Lightning and rainbow over Remich, 3 August 2026.
Lightning and rainbow over Remich, 3 August 2026.
© Jasmine Pleimling

As temperatures begin to move away from the 30°C threshold, only the south of Luxembourg remains under a yellow heat alert on Sunday. Meteolux warns of moderate stress until midnight, although thunderstorms are forecast to appear in the second half of the day.

Water conservation measures remain in place

The country’s Water Management Agency has reiterated that the “vigilance phase” regarding drinking water, in place since 10 July, remains active. The ongoing heat is leading to increased water consumption, while water resources remain under pressure.

Residents and businesses are urged to save water and minimise all non-essential use.

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