Accumulations of up to three centimetres are possible in parts while icy conditions are likely on the roads.
"Devon's army of Snow Warden volunteers should be aware of the potential for some snow to lay on higher ground over the next 36 hours, but should also be prepared for a period of cold weather with the potential for ice and possibly further snow at times".
GARDAI have issued a warning about snow and ice as a national weather alert remains in place.
Met Eireann says, "Snow showers will occur this evening, tonight and during Friday".
There'll be icy stretches too - with north and northwest counties most at risk.
The warning has been valid from 4:00pm this evening and it will remain in place until 6:00pm tomorrow evening.More news: 3 dead, including gunman, after New Mexico school shooting
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It's because an Atlantic storm, Storm Caroline, is passing close to us.
Looking ahead to tonight's forecast, Met Eireann predict: "Wintry showers will be widespread overnight and frequent in the north with accumulations of snow over inland parts of Ulster and other northern areas".
Yellow warnings for snow and ice have also been issued across the region from midnight on Friday to 6pm on Saturday.
Feeling raw in the strong northwesterly winds, bringing a significant wind chill.
The A5, A49, M54, M56, A55 and the A483 are also expected to be impacted by snow fall of between 2-5cms. Fresh, locally strong, and gusty northwest winds will ease away from the west coast as the day wears on.
The forecaster said: "Conditions will be bright cold and blustery today".