Updated: 24th September 2021
As the Jet Stream is running directly west to east across northern Europe this week, it is pinning a large body of high pressure over the western Mediterranean maintaining fine conditions across the Alps. As the stream breaks down towards the end of this week, however, an area of low pressure moves in from the west.
Snowfall will be limited in France compared to the higher Austrian Alps. However, the highest mountains around Chamonix will see around 4cm this weekend, with more flurries towards the beginning of October.