Geneva recorded its hottest 23 June on record yesterday, hitting 36, shattering the previous mark of 35.6 set in 2003.
Payerne reached the same level, while Zurich, Chur and Lucerne all climbed past 33.
MeteoSwiss says the run of tropical days will be unusually long, with no real relief expected before the weekend.
Authorities are urging residents to drink plenty of fluids, seek out cool places and check on the elderly as the heatwave shows no sign of breaking.
Some apartments unliveable in heat
Tenants’ associations in French speaking areas say renters can demand rent reductions when their flats become unliveable in the heat.
Gynaecologist convicted of sex offence
A Geneva gynaecologist has been sentenced to five years in prison for sexually abusing five patients and a young girl.
Plan to raise health insurance deductible
Switzerland's plan to lift the minimum health-insurance deductible from CHF 300.- to CHF 400.- has split the country.
Offical illegally blocked EU nationals from working
A senior official at canton Basel-Country's migration office is on trial for illegally denying hundreds of EU citizens the right to live in Switzerland.
Five aircraft entered Bürgenstock airspace during summit
Switzerland's armed forces say five aircraft breached the restricted airspace over the Bürgenstock during this weekend's US-Iran talks.
Scabies fear overblown
It’s not scabies - mainly.
