Snow has already fallen in parts of Ireland this morning with pictures from Donegal showing small snow accumulations.
And Met Éireann's latest forecast has warned that it will be "frosty or icy" in places this morning, along with some lying snow on the ground.
The national forecaster said that blustery showers in northern and western parts of the country will turn "wintry in places". These showers will extend across the whole of Ireland through the morning and early afternoon with a chance of isolated thunderstorms.
READ MORE: Ireland weather: Washout predicted for St Patrick's Day as Met Eireann issue grim update
Meanwhile, a Status Yellow weather warning for snow and ice remains in place until 12 noon on Tuesday and affects Galway, Leitrim, Mayo, Roscommon, Sligo, Cavan, Donegal, Monaghan, Longford, Louth, Meath, Offaly and Westmeath.
The Met Eireann alert reads: “Wintry showers will lead to icy conditions in some areas on Monday night and on Tuesday morning. Potential Impacts include hazardous road conditions and slippery paths.”
Here is an overview of the weather for the week:
Tuesday, March 14
Frosty or icy in places this morning, along with some lying snow, but with spells of sunshine too. Blustery showers in northern and western parts, turning wintry in places, will extend to all areas through the morning and early afternoon with a chance of isolated thunderstorms. Becoming largely fine later this afternoon as the last of the showers clear the southeast. Highest temperatures of only 5 to 9 degrees (north to south), with an added wind chill factor owing to fresh and gusty northwest winds, easing later.
Tonight, frost and ice will set in quickly after dark under clear skies and easing winds. Cold with lowest temperatures of -3 to +1 degrees, coldest in Ulster. Later in the night, rain will develop in the southwest and across western fringes.
Wednesday, March 15
Dry at first across much of the midlands, north and east on Wednesday with frost and ice clearing. Outbreaks of rain elsewhere will soon become widespread, heaviest across Munster and Connacht with spot flooding. Some local sleet or snow is possible for a time across the northern half of the country. Highest afternoon temperatures of 2 to 5 degrees in the north, but ranging 7 to 11 degrees further south, in fresh and gusty south to southeast winds.
Wednesday night, a wet night with heavy falls of rain, leading to spot flooding, though easing off later. Breezy too, in mostly fresh southerly winds. Relatively mild though with lowest temperatures of 7 to 11 degrees.
Thursday, March 16
A mild and breezy day sunny spells and showers, some heavy and prolonged. Highest temperatures of 12 to 15 or 16 degrees in moderate to fresh southwest winds, best values across the northeast. THURSDAY NIGHT: Scattered outbreaks of rain will move up across the country, in a moderate southerly airflow, stronger along southern coasts. Another relatively mild night with lows of 8 to 10 degrees.
Friday, March 17 - St. Patrick's Day
Current indications suggest it will be a showery day on St. Patrick's Day. There will be a mix of sunny spells and showers, some of heavy and prolonged. Relatively mild with highest temperatures of 12 to 15 or 16 degrees, in moderate to fresh southerly winds with best values away from southern counties. Friday night, will be a mix of clear spells and slow moving showers with some mist and fog locally as the winds slacken. Lowest temperatures of 6 to 9 degrees.
This weekend
Rather mixed with clear spells and showers but with light enough winds overland. Temperatures are likely to slip back though with colder nights lending to some frost and possible ice.
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