For PONTOISE : No gale warning.
We are 90% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will begin.
Overcast with reduced visibility in the morning, overcast skies in the afternoon. Risk of some spots of rain in the morning, light showers followed by rain in the afternoon.
In the evening, overcast skies. Light rain. E force 2 becoming force 3 in the middle of the day then ESE. Gusts reaching 19 knots in the evening. Visibility reduced by mist becoming poor in the middle of the day then excellent.