A south-westerly upper-level flow continues to carry very warm, but increasingly unstable, air masses towards the Alps.
On Thursday, the sun is set to shine widely again to begin with. In the afternoon and evening, thunderstorms will become more frequent. In some places, the thunderstorms may be severe.
Temperatures will drop slightly, but it will remain humid, with maximum temperatures ranging from 29° to 36°.
Sunshine and thunderstorms
Friday will bring a mix of sun and clouds, with a few thunderstorms again as the day progresses. Temperatures will drop by a few degrees.
Saturday will be mainly sunny.
The sun will shine on Sunday too. Isolated thunderstorms are possible again in the afternoon.
On Monday, the weather is expected to remain slightly changeable, with sunshine, clouds and a few thunderstorms.
A south-westerly upper-level flow continues to carry very warm, but increasingly unstable, air masses towards the Alps.