Met Éireann has warned of potentially hazardous road conditions because of severe frost this morning.
It has also issued an alert for ice and freezing fog in some parts of the country.
Both warnings will stay in force until midday as will a snow/ice warning for Co Donegal.
The forecaster says the cold snap will continue into next week.
Keep up to date with all the latest road conditions and weather warnings over the weekend with Donegal County Council’s live dashboard.
The sub-zero temperatures led to the cancellation of dozens of flights at Dublin Airport yesterday.
Airlines say that flight delays today cannot be ruled out.
Intending passengers are advised to check for flight updates online.
