Met Eireann issue national fog warning as temperatures plunge
Forecasters have issued a fog warning nationwide which will remain in place until Monday morning.
The status orange warning is issued as the country experiences a sudden plunge in temperatures over the past couple of days.
Met Eireann say the warning will remain in place until Monday morning at 9am.
The country will experience frost, ice and freezing fog tonightm, but it should be dry save for a few wintry showers on the northwest and possibly the east coast.
The lowest temperatures will be between zero and -3C tonight.
Little change is expected until next Sunday at the earliest, with icy conditions set to continue for the rest of the week.
Daytime lows of 5C are expected in the west and north-west, with temperatures unlikely to go higher than 7C.
Motorists have been warned to be extra vigilant, particularly at night, with black ice causing treacherous conditions in many parts of the country.
A surge in car breakdowns has been predicted - with possible delays on major routes over the next few days.
An AA spokesman advised drivers to take care on the roads as the weather worsens today.
"The most dangerous time is in the evenings when people are going home," he said.
"They may not anticipate a sudden change in road conditions.
"Normally the rule of thumb is that when you get a sudden turnaround in weather conditions, it takes about an hour for drivers to fully realise roads have got more dangerous."
The AA's advice for motorists is to "get into the winter mindset as quickly as possible".
Its spokesman stressed the importance of careful driving, with weather conditions becoming more erratic as the Irish winter sets in.
"The vast majority of drivers will already have experienced this kind of weather, and they need to remember what they learned the last time and they need to remember it quickly," he added.
Meanwhile, Tuesday and Wednesday will continue chilly while remaining dry in most parts with sunny spells.
Temperatures will range from 6 to 8C, with frost and fog at night and in the mornings.