Conditions are expected to deteriorate tomorrow, becoming increasingly cloudy and blustery.
Rain will become more persistent in the afternoon, with strong and gusty south to southeast winds and gales along some coasts.
The heavy rain is expected to clear overnight and temperatures are likely to fall to zero degrees, creating sharp frost in some areas.
After a dry start to Saturday morning, the national forecaster states:
"Heavy rain and strong and gusty southerly winds will move eastwards over the country bringing a risk of very strong squally winds, with gales along all coasts and strong gale force winds along the northwest coast.
"The rain possibly lingering into the evening in parts of Leinster and Munster."
Near gale force winds are expected for Sunday along with continued heavy rain as Storm Ciara tracks to the north of the country.
The beginning of next week could continue to be plagued by poor weather conditions as Met Éireann has forecast:
"The early days of next week are likely to remain very unsettled, with generally strong winds, and potentially stormy conditions at times along with high seas."
The latest weather forecast follows a report published by Met Éireann on Monday, stating that globally, last month was the warmest ever January on record.
In Europe, it was 0.2 degrees warmer than the previous warmest January in 2007.
Cork had the highest mean monthly temperature in Ireland.
Mean temperatures for the month ranged from five degrees at Knock Airport to 8.3 degrees at Sherkin Island, Co Cork.