For Hallwilersee : No gale warning.
The reliability of the situation is assessed at 80%.
Very cloudy skies to overcast. No precipitation in the morning, showers late in the day.
In the evening, clear periods developing. Light showers progressively becoming less frequent. WNW force 2 becoming NW force 3 in the middle of the day then SW force 2. Gusts reaching 18 knots in the middle of the day. Excellent visibility becoming good in the evening.