Sub-zero temperatures hit Ireland last night, as a severe chill left most of the country under snow.
Temperatures plummeted to -4 degrees Celsius and weather forecasters Met Eireann warn that the artic conditions could last for much of the week.
A Met Eireann spokesman said: “Monday will be extremely cold with frost lingering in places all day and with scattered snow showers in coastal counties of Ulster, Leinster and Munster.
“These will extend further inland in the southern half of Leinster. It will be mostly dry elsewhere with sunny spells.
“Expect highest temperatures of just 1-3°C with moderate to fresh, gusty northeast winds.”
Temperatures are set to warm up a little tomorrow, melting whatever snow has iced our Emerald Isle.
Motorists have been warned to take care driving as the slush and fog cause dangerous conditions.
“Another widespread frost can be expected Tuesday night as winds drop light,” Met Eireann said.
“But not quite as severe as on Monday night with lowest air temperatures more typically zero to -3°C.
“Dangerous conditions are possible with patches of ice and freezing fog.”
Drivers have been warned to stay safe on the roads.
By the end of the week we can expect warmer, but wetter, conditions.