General Situation:
The anticyclone characterized by dry hot air at high altitude is still affecting the region, while in the low layers, southwestern currents are becoming more humid. Wednesday sees the passage of a weak front.
A clear sky on the Alps and high-altitude temperatures higher than the seasonal average. From the coast to the Prealps the sky is generally scarcely cloudy or locally variable. There is a chance of fog on the plain in the night and morning.
Source: Osmer