Weather warnings have been extended across the Shannonside region, with temperatures set to barely rise above zero today.
A low of minus 6 point 8 degrees was recorded overnight, and snow has fallen in parts of the north-west.
A status yellow snow-ice alert for all of Connacht along with Donegal, Cavan, Monaghan and Louth will remain in place until 11 o'clock tomorrow morning.
While a status yellow low temperature-ice warning will kick in for the rest of the country at 5 o'clock this evening.
Alan O’Reilly from Carlow Weather says it's leading to hazardous conditions.