If you are planning a journey to East Switzerland and wish to enquire about weather conditions, then the weather app on meteo.srf.ch is a reliable source of information. The weather app will provide you with detailed infomation on the weather conditions in East Switzerland.
Cloudy and rainy.
25. May6° / 18° Sunny periods.
26. May11° / 21° Sunny periods.
27. May14° / 23° Sunny intervals.