Status yellow snow, ice and wind warnings come into effect at 8am.
Up to 5 centimetres of snow will fall in parts of the midlands today.
Status yellow snow, ice and wind warnings will be in place for Leinster, Connacht and Munster from 8 o'clock this morning.
The alerts will last for 24 hours, and Met Éireann's warning of poor visibility.
Offaly's Cathal Nolan, from Ireland's Weather Channel, says there will be dangerous driving conditions: