The Alpine region will lie under a marked air mass boundary between cold, polar air in the north and mild Mediterranean air in the south. In addition, an Italian low will move in during the course of the day.
Clouds will predominate and precipitation will spread during the day, becoming heavier in the evening and during the night. The snow line will lie between 1500 m in the north and over 2000 m in the south, dropping to 500-1000 m in the evening and at night with the arrival of colder air and the higher intensity of precipitation.
Saturday will begin cloudy with widespread precipitation. Snow line between 500-1000 m. As the day progresses, north foehn will dry out the air in the valleys, while snowfall will continue at higher altitudes into the afternoon.