Sunday will start off sunny. In the afternoon, there may be showers, some of which could be thundery. A foehn wind will blow in the northern valleys. On Monday morning, the weather will be mainly sunny, whilst in the afternoon there may be further showers, particularly in the south. On Tuesday, too, the weather will be mainly sunny with a northerly wind. A few isolated showers cannot be ruled out during the hottest part of the day. Temperatures will fall slightly. On Wednesday, sunshine will prevail with temperatures on the decline.