Sunday will start on a friendly note with some sunshine. In the second half of the day, widespread rain showers and thunderstorms are to be expected. On Monday morning, the last rain showers will move eastwards and it will become sunny. Clouds will increase again in the afternoon and thundery showers will develop. It will be cooler than recently. On Tuesday, the sun will shine frequently in the first half of the day, with only a few rain showers to be expected in the afternoon. A strong northerly foehn will blow in the northern valleys. Wednesday will be very sunny with only harmless cumuliform clouds.