The cold spell is taking hold with a yellow ice warning in place for the country this morning.
There'll be icy stretches until midday causing hazardous driving conditions.
While a winter weather advisory will continue for the coming days, bringing some hail, sleet, snow and freezing fog.
Cathal Nolan of Ireland's Weather Channel says untreated roads will be very dangerous.
"The ice warning will remain in place for quite some time today, temperatures by day are expected to remain below single figures possibly maybe remain in around freezing in some locations especially in the shade.
"So certainly on more rural roads that may not be treated certainly in these areas, there is the risk of some icy patches throughout the course of the day."
