Today in Grand Ballon, warning: strong gusts in the morning.
Fairly cloudless skies becoming changeable during the morning, sun and storm clouds in the afternoon. No precipitation in the morning, possibility of showers in late afternoon.
We are 75% sure of the situation, because the atmosphere might be less unstable and showers rarer than forecast.
Temperatures will vary between 21 and 28°C, it will be warm in the afternoon and 11°C above normal.
Tonight, skies progressively clouding over with storms forming.
Showers. Light winds.