By Friday, the country is expected to see maximum daytime temperatures of minus seven degrees, with overnight temperatures dropping to between minus ten and minus fifteen degrees.
Daytime temperatures in the Alps are forecast to plunge to between minus 15 and minus 20 degrees in the second half of the week.
The cold weather will persist through the weekend, as freezing temperatures remain the norm for the start of next week, with some snowfall forecast in the west of the country.
According to the Swiss Federal Office of Meteorology and Climatology, the cold weather front will approach the country from the east, moving in from Siberia, over the Balkans and towards Switzerland later in the week.
The incoming cold air mass is estimated to have a temperature of about minus 20 degrees. The air mass is travelling particularly low over the earth’s surface, but exactly how it will affect temperatures across Switzerland will depend on cloud cover in the coming days, Swiss weather website SF Meteo reported.