The wildfire risk has climbed to the highest level so far, with Valais now under "very high danger" and open fires banned across several cantons.
The warning covers Sion, Sierre, Montana, Fully and other Valais districts, where 30-degree heat and prolonged drought have left forests tinder-dry.
Ticino and Graubünden are historically most exposed, though no canton is entirely safe.
Swiss Post announce job cuts
Swiss Post will eliminate up to 110 positions in 2027, blaming shrinking letter volumes and fewer over-the-counter transactions
Autumn arrives in Switzerland
The heatwave that has gripped Switzerland since May finally breaks tomorrow
Driver warning in Vaud
Drivers in western Vaud face four nights of disruption on the A1 next week.
Mixed results in school classrooms
Swiss 15-year-olds still rank among the world's best in maths and science, but their performance in reading and maths is sliding
Good news for household bills
Swiss households will pay a little less for electricity next year
Fuel reserves now in use
Switzerland is dipping into its emergency fuel reserves for the first time this year to keep petrol and diesel flowing
