A south-westerly upper-level flow continues to carry very warm, but increasingly unstable, air masses towards the Alps.
It will be sunny to start with. In the afternoon and evening, a few thunderstorms will develop, some of which may be severe in places.
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.