Saturday will begin with large clearings, but also with fields of mist, fog or low clouds in places, according to forecasts from the Royal Meteorological Institute (IRM). Cumuliform clouds will develop and at times obscure the sun. They could lead to a few showers in the afternoon, mainly in the regions close to the French border and in the south-east of Belgium. The maxima will be between 22°C on the coast or in the upper Ardennes and 25 to 26°C in the plain.
In the evening and at night, the weather will be calm and large clearings will develop. The minima will vary between 10°C in the Ardennes and 14 or 15°C in the plain. Sunday will be mostly sunny. The mercury will rise to 25°C in the Hautes Fagnes and the coast, and up to 29°C in the center.