Today in Guyancourt, the sky will remain very cloudy.
Very cloudy skies with short clear spells. No precipitation. Moderate winds.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Temperatures will vary between 6 and 12°C, it will be 5°C above normal.
Tonight, clear periods developing.
No precipitation. Light winds.
