Met Éireann has issued two national weather warnings ahead of the weekend as heavy rainfall and bitterly cold conditions are set to continue from today onwards.
Donegal, Clare, Cork, Kerry and Limerick are set to be the worst affected - with about 30 to 40mm of rain expected.
The weather warning is in place until 12pm on Saturday.
Meanwhile, the national forecaster has also issued a weather warning for the entire country as cold and very unsettled weather is set to hit all counties.
Snowy conditions could spread from Donegal as far as Kerry today - with heavy rain expected to wash out the rest of the country this weekend.
Forecasters at Met Éireann expect snow and sleet in hilly areas across the western side of the country over the course of today.
And while the rest of the country will avoid the brunt of this wintery weather, rain is certain to be a regular presence all over for the remainder of the weekend.
Met Éireann forecaster John Eagleton told the Independent.ie that remaining indoors may be the best option over the next couple of days.
"If you're going out, prepare for it. It's not going to be too windy though," Mr Eagleton said.
"Maybe just Friday (snow), more in the high ground in the west, it'll be coldest there. There'll be a slight bit of wet snow, it's possible."
While some dry spells are anticipated over the course of Saturday, Sunday's weather will be a write-off.
"It's not going to be a great weekend. There's a lot of low pressure so we're going to get a lot of rain at times, though there'll be some dry periods too," Mr Eagleton said.
"There'll be a bit of sunshine, but there'll also be a lot of rain around throughout both Saturday and Sunday, it'll be quite unsettled," he added.
Temperatures in the east of the country will range between six and eight degrees, but will drop to as low as two degrees in the west over the course of the next three days.
This is not uncommon for this time of the year, according to Mr Eagleton.
"You know March itself, you can get anything, so I wouldn't say it's unusual for March," he said.
"You think of St Patrick's Day, they've varied a lot haven't they? Some cold ones and some lovely ones.
"I think Monday will be a good day but it's changeable for the rest of the week."