Sabrina, on that first one there seem to be some speckles on the leaf on the right. Is there any chance it has spider mites? I can't quite make it out well enough.
How much rain are you expecting? If it's only a little and it just wets the surface it will help somewhat by reducing transpiration but there still may not be enough at the roots. Looking at my weather radar app there's no organized rain headed your way, just scattered showers. There's one slightly heavier one around Turin. Does the geography increase the chance of rain where you are because there's not much going on there now if the app is correct. If you think it needs watering now, water it now is what I would say.
