Met Éireann has warned that localised flooding could hit parts of Leinster and Munster tonight with heavy rainfall forecast.
The forecaster has put a yellow rainfall alert in effect for Dublin, Carlow, Kildare, Kilkenny, Wexford, Wicklow, Cork and Waterford.
Rainfall of between 25-40mm is expected tonight which comes with a risk of localised flooding.
Met Éireann said that heavy rain is likely to develop along the south coast before it moves northeast into parts of Leinster.
“There is some uncertainty about the track of the depression, but some heavy falls of rain are likely to occur on Saturday night and on Sunday morning.”
Thundery showers and sunny spells will continue this evening with heavy rain gradually developing across Munster.
The heavy rain will extend into Leinster and east Ulster early tonight but it will be mainly clear elsewhere with temperatures of between 8 to 11 degrees forecast.
The outlook is better tomorrow as rain is expected to clear from the east, followed by sunny spells and showers for the afternoon.
Temperatures are expected to reach highs of 16 or 17 degrees with moderate northwesterly breezes.