Met Eireann has warned that there will be a staggering five days of snow all around Ireland as an urgent alert for Beast From The East like conditions hit.
A weather advisory is in place for Ireland until Wednesday evening but that is expected to be extended as the week-long wintry conditions attack Ireland.
In the alert, Met Eireann warn: "Monday, Tuesday and Wednesday will be very cold with temperatures in low single figures by day and with sharp or severe frosts and icy patches at night.
"Showers of sleet or snow at times in eastern counties from Sunday evening onwards. Hazardous conditions on roads and paths."
Monday will be very cold and breezy with scattered showers of sleet and snow drifting in from the Irish sea through the day.
Temperatures of 4C will dip below zero in the night with further showers of sleet and snow and sharp frost forming.
Tomorrow will be another cold day with scattered showers of sleet and snow coming in as temperatures remain around 2C.
The summary for the week predicts very cold weather with wintry showers out to midweek and more widespread falls of sleet and snow later in the week.
Aside from this, the UK Met Office has also issued a status yellow ice warning for Antrim, Armagh, Down, Tyrone.
And in the UK, many parts of the country will feel the full effects of Storm Darcy today and temperatures are this week set to plummet to as low as -13C in some parts.
Here's how the week is looking according to Met Eireann:
Tuesday night: "Very cold tomorrow night with frost and icy stretches forming under long clear spells. Scattered showers of sleet and snow will become confined to the east and northeast, with largely dry conditions elsewhere. Lowest temperatures of -4 to 0 degrees in a light to moderate northeast breeze."
Wednesday: "It will be another cold but rather bright day. It will remain dry in many areas but scattered wintry showers will continue to affect north Leinster and east Ulster. Frost and ice will linger through much of the day as afternoon temperatures reach just 1 to 3 degrees in a light to moderate easterly breeze."
Wednesday night: "Isolated wintry showers in the east and northeast on Wednesday night but mainly dry elsewhere to start. However, a band of rain, sleet and snow will gradually push into the southwest overnight. Very cold again with lowest temperatures of -3 to +1 degrees, with widespread frost in moderate easterly winds.
Thursday: "A very cold day on Thursday as rain, sleet and snow spread northeastwards across the country, with accumulations leading to hazardous conditions. Quite breezy also with fresh southeasterly winds. Afternoon temperatures of just 0 to 3 degrees generally."
Thursday night: "Further falls of snow in Ulster and Leinster on Thursday night, with outbreaks of rain elsewhere. Lowest temperatures of -1 to +3 in fresh southeasterly winds."
Friday: "There is some uncertainty in the exact details for Friday. Current indications suggest that sleet and snow will continue for a time in Ulster and north Leinster with outbreaks of rain elsewhere. Highest temperatures of 1 to 5 degrees over Ulster, Leinster and north Connacht and 6 to 10 degrees elsewhere."
