For Château Chillon Ouest : No gale warning.
We are 80% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will end.
High, thick cloud cover in the morning, some sun but cloud building in the afternoon. No precipitation.
In the evening, very cloudy skies to overcast. Light, intermittent drizzle. S force 1 turning WNW force 2 in the middle of the day then NNE force 1. Gusts reaching 9 knots in the middle of the day. Good visibility becoming excellent in the middle of the day then excellent.