Cloud will dominate much of Monday with occasional light rain, according to the Royal Meteorological Institute, and heavier showers are likely later, especially in the north west.
Temperatures will reach 10 to 12°C in the Ardennes and 13 or 14°C on the plains, with moderate south to south-westerly winds and coastal gusts up to 50 km/h.
Some rain will continue on Monday evening before drier weather moves in overnight, although low cloud may stick around across southern Ardennes slopes.
