A nationwide yellow snow ice warning has been extended until Sunday.
Met Eireann now says the weather will continue to be very cold until Sunday with severe frosts at night and ice on untreated surfaces.
Treacherous weather conditions are expected in parts of the country over the next few hours, with temperatures falling to as low as minus six degrees tonight in places.
The national forecaster predicts there will be further wintry falls this evening, mainly in the south and east of the country.
Motorists are urged to be vigilant and adjust their driving to the conditions on the road.
Icy roads Leitrim County Council crews will be out salting priority roads twice tonight at 6pm and 5am. Road surface temperatures due to fall to -5C so please drive carefully #Leitrim #Leitrimraods #Wintermaintenance pic.twitter.com/NAT1sl9YM6
— Leitrim County Council (@leitrimcoco) January 31, 2019