On Monday morning, scattered outbreaks of rain will gradually clear northeastwards, with a few showers and some bright spells following.
Met Éireann has said that it will be a mild day, with highest temperatures of 11°C to 13°C.
In the evening, southerly winds will strengthen, with rain moving into the southwest after dark.
It will be wet and windy on Monday night, with rain moving in from the southwest and quickly sweeping across the country to all areas.
Met Éireann has said that a clearance to blustery showers will follow later in the night.
Lowest temperatures will range between 5°C and 8°C.
A mix of cloud and sunny spells are forecast on Tuesday, with widespread showers.
Highest temperatures will range between 8°C and 11°C in moderate to fresh southwesterly winds.
Another band of rain is forecast to cross the country from the southwest on Tuesday night. Lowest temperatures on Tuesday night will range between 3°C and 6°C.
Wednesday will be a day of scattered showers, with Met Éireann saying that the showers will be most frequent in the south and west and it will be mostly dry further east.
Highest temperatures will range from 7°C to 10°C in a moderate southwesterly breeze.
Meanwhile, a spell of more persistent rain will move into southern areas on Wednesday evening, clearing eastward later in the night.
It will turn colder after the rain clears, with lows of 1°C to 3°C.
Any lingering overnight rain in the east clearing in the morning to give a mostly dry day on Thursday Met Éireann has said, with sunny spells and a few scattered showers.
Cloud will build from the southwest through the day, with rain arriving by evening.
Highest temperatures will range between 7°C and 9°C in a moderate southerly breeze.
It is forecast to become quite windy on Thursday night and wet, with rain extending to all areas. The heaviest showers are forecast in the southwest.
Current indications from Met Éireann suggest that Friday will be a windy day, with strong southwesterly winds feeding in widespread showers, heaviest and most frequent in the south and west.
A mild day is forecast, with highs of 12°C to 14°C.
Rainfall and ground conditions this week
Western counties, Munster and south Leinster will have higher than normal rainfall totals this week Met Éireann has said, with 50mm to 60mm expected this week in south Munster and west Connacht, over 200% of the average.
The midlands, north and northeastern areas will have near normal rainfall, with 10mm to 20mm expected.
Soil temperatures in the past week have been 1°C or 2°C below average and Met Éireann has said they will increase this next week to come closer to average in the milder than normal conditions.
Poor field trafficability is expected this week.