Rain will turn to sleet and snow in parts of southern, central and eastern Scotland this evening, as well as the north Pennines, with further wintry showers in places overnight.
A cover of snow is expected in places, chiefly over high ground (0-2 cm over some low ground, 2-5 cm above 200m elevation and perhaps 10 cm on the highest routes).
Ice is looking to become more widespread later as skies begin to clear into Boxing Day.
Some roads and railways may be affected by longer journey times, with icy surfaces leading to the possibility of slips and falls on roads, pavements and cycle paths.
A spokesman for the Met Office said: “As winds swing into the northwest, we return to a more seasonal mix of sleet, snow and ice tonight.”