Frequent, heavy showers will become isolated during the afternoon with some sunny spells set to develop, according to Met Éireann.
Temperatures will range between 7 to 10 degrees this afternoon, before falling to 4 to 6 degrees overnight.
There will be further scattered showers, which will mostly impact the north of the country tonight; long, dry and clear spells are expected elsewhere along with fog.
Saturday – Met Éireann predicts that it will be mostly cloudy with some patchy rain and drizzle. A spell of rain will arrive on western coasts by the evening, with rain to turn heavy and spread eastwards elsewhere.
Temperatures will range between 9 and 11 degrees during the afternoon, before dropping between 4 to 5 degrees.
There will be heavy rain for a time before clearing during the first half of the night to scattered showers – most of which will impact western and northern coats.
Sunday – The national forecaster has warned that fresh to strong west to south-west winds will reach gale force along coasts.
High seas along the Atlantic seaboard with “overtopping at coasts, bringing the risk of coastal flooding”.
There will be widespread heavy showers, which will merge to bring longer spells of rain at times in the north.
Temperatures will be in the region of 6 to 7 degrees in the afternoon, with “little change” overnight.
Storm Atiyah will track between Iceland and Ireland on Sunday generating a swathe of very strong winds across the country, according to the national forecasters – find more here.