A new Orange Weather warning has been issued for the counties of Donegal and Leitrim.
The Severe Weather Warning for low-temperatures has been issued by Met Eireann.
It's expected to turn extremely cold with widespread severe frost and ice, along with lying snow in some areas.
There will also be Patches of freezing fog which will lead to dangerous travelling conditions and as a result Travel disruption is expected.
The warning is valid from 7 p.m. this evening and will last until 8 a.m. tomorrow morning.
The warning has also been issued to a number of other counties including Roscommon, Galway and Cavan.
A Status Yellow ice warning also remains in place for the remainder of the Country until 12 p.m. tomorrow.