Night-time temperatures will be in the range -6 C to - 11, but near the coast things will be considerably warmer with night-time temperatures of -2 C to - 5 C degrees.
Daytime temperatures will gradually warm up from -5 C to 0 C so that a full-scale thaw will begin on Monday.
Warmer air will be brought in by a north-westerly wind and in western districts temperatures could rise to + 7 C.
However, the warmer temperatures are also likely to bring some rain with them, with the threat of ice foring on roads overnight.
