Départ
Today in Guyancourt, the unsettled weather will become more unpredictable in the second half of the day.
Very cloudy skies with short clear spells. Some showers from late morning. Light winds.
We are 80% sure of the situation, because the atmosphere might be less unstable and showers rarer than forecast.
Temperatures will vary between 6 and 11°C, it will be 5°C below normal.
Tonight, clear periods developing.
Light showers progressively becoming less frequent. Light winds.
