Motorists have been urged to drive with care with icy patches and snow hitting many parts of the country.
A Status Yellow warning is in place with scattered snow showers and icy patches forecast.
The showers will become confined to western and northern areas later today.
Temperatures are expected to drop to -2C overnight.
Frost on many roads this morning, Gardai advising road users to be particularly careful on secondary routes. https://t.co/PSzIBsvOzE— AA Roadwatch (@aaroadwatch) November 25, 2017
A number of roads around Portarlington and Mountmellick in Co Laois are still impassable following heavy rain and flooding on Wednesday.
The Defences Forces sent in 32 personnel to help with flood relief works in Mountmellick this morning.
Frost & icy patches in many areas this morn. Sunshine & wintry showers today, with the greatest risk of snow early this morn & falling mainly as rain&sleet during the day. They'll be heaviest in the W&N & will be isolated in the SE. Highs 4 to 7 °C with fresh, gusty W to NW winds— Met Éireann (@MetEireann) November 25, 2017