For Grüner See : No gale warning.
The reliability of the situation is very good.
Very cloudy in the morning, cloud and sun in the afternoon. The risk of seeing rain will remain low.
In the evening, cloudy spells, sometimes dense. Showers towards the end of the night. SE force 1 becoming force 2 in the middle of the day then N force 1. Gusts reaching 15 knots in the middle of the day. Good visibility becoming excellent in the middle of the day then good.