Met Eireann has issued a Status Yellow snow and ice warning for Co Donegal.
The alert is in place until midnight with heavy wintry showers of hail, sleet and snow expected and accumulations likely in places.
The UK Met Office has issued a Yellow warning for ice in Antrim, Fermanagh, Tyrone and Derry.
Meanwhile, a weather advisory is in place for the entire country until Saturday as "sharp to severe frosts and icy stretches" are expected and snow could fall on lower ground.
Alan o reilly, forecaster with Carlow Weather joined Shane Beatty with the latest: