Rain will become widespread across Munster, Leinster, southern parts of Connacht and south Ulster this morning, according to Met Éireann.
It will remain mostly dry further north, with the exception of scattered showers.The national forecaster said that there may be sleet on high ground in parts of the east.
Temperatures will reach between 5 to 8 degrees this afternoon, dropping between 0 to 3 degrees tonight. Some mist and fog patches are expected tonight, with frost set to form and some icy patchy possible.
Saturday – Any rain over parts of Munster and south Leinster will clear, giving rise to a cold, but bright day with sunny spells.
The national forecaster predicts that most areas will be dry; however, scattered rain or hail showers will descend upon the north and north-west.
It will be cold and frosty on Saturday night, with temperatures to drop to 0 degrees or lower.
Sunday and Monday – It will be cold and generally dry, with the exception of coastal showers, mainly in the north, according to Met Éireann.
Sunny spells are expected by day with afternoon highs of 7 to 11 degrees.The forecaster has warned that nights will be chilly, with sub-zero temperatures, widespread frost and a risk of icy patches.