A yellow weather warning has been issued for between 8pm tonight and 4pm on Tuesday.
Isolated showers tonight are likely to be wintry, especially over the high ground, before dying out later in the night.
Small accumulations of snow or hail are possible, most probably above 500 feet.
Road temperatures will fall close to or slightly below freezing later in the night on higher roads (again about 500 feet), giving a possibility of ice.
A few very sheltered spots lower down are also at risk towards dawn. During tomorrow roads temperatures on high level roads will remain close to zero.