Départ
Today in Le Grand Bornand, instability will build during the day.
Little cloud in the morning, sun and storm clouds in the afternoon. No precipitation in the morning, light showers in the afternoon. Light winds.
We are 85% sure of the situation, because the atmosphere might be less unstable and showers rarer than forecast.
Temperatures will vary between 20 and 30°C, it will be very warm in the afternoon and 9°C above normal.
Tonight, changeable skies becoming less cloudy.
Light showers progressively becoming less frequent. Light winds.