A national weather advisory is in effect for Ireland until Wednesday 10 February.
Met Eireann has warned the temperature will be “bitterly cold”, in low single figures during the day and with widespread frost and ice at night.
Yesterday, sleet and snow showers started in the eastern counties. Drivers and pedestrians should be aware of hazardous conditions on the roads and paths.
Met Eireann said that Monday will be very cold and while many areas will stay dry with sunny spells, there will be some sleet and snow showers, mainly across north Leinster.
The highest temperatures during the day will be just 1 to 4C with an added wind chill factor. As the day develops, it is set to be very cold with wintry showers, mainly in eastern counties. Widespread sharp frost and ice patches at night are expected too.
On Monday evening showers of sleet and snow in the east will become more frequent and push further inland. Lowest temperatures of between -3 and 0C.
The UK Met Office has also issued a status yellow ice warning for Antrim, Armagh, Down and Tyrone.