Temperatures could fall to minus 3 or 4 degrees
Met Éireann is warning of low temperatures tonight across the entire country.
The national forecaster said temperatures will fall to minus 3 or 4 degrees tonight, colder locally away from coasts. This will lead to a widespread hard ground frost and icy surfaces, with potentially dangerous conditions.
The warning comes into effect at 6pm tonight, and lasts until 10am on Sunday morning.