Met Éireann has said that Monday will start dry, with mist and fog patches clearing. Later in the morning, cloud and rain will move into Atlantic coastal counties and will extend eastwards, with the rain turning light and patchy.
It will feel humid, with moderate or fresh southerly winds and highest temperatures of 16°C to 20°C, the coolest of which will be in Atlantic coastal areas.
Mild and humid conditions are forecast in most areas on Monday night, with a little patchy light rain or drizzle in places and some mist and fog in parts too in light westerly breezes.
Lowest temperatures will range from 9°C to 12°C generally, though it will be a little cooler in the northwest, with lows of 7°C or 8°C.
Tuesday is expected to be dry in most areas, with light westerly or variable breezes. It will be cloudy and misty at first, with the odd spot of drizzle.
However, it is forecast to brighten up, with warm spells of sunshine. Highest temperatures will range from 14°C to 21°C, with the best values in inland parts of the southeast.
Wednesday morning will bring some rain and drizzle to the northern half of the country, clearing to give a mostly dry afternoon with some brighter spells gradually developing, according to Met Éireann.
The southern half of the country will stay dry all day with early mist and fog clearing to give spells of sunshine. There will be little or no wind on Wednesday and maximum temperatures will range from 16°C to 22°C.
Rest of the week
The rest of the week is forecast to be warm or even very warm at times for late May.
There will be a good deal of dry weather overall, with spells of sunshine. Some rain or drizzle may occur at times too, with this most likely in northern and western parts of the country.
In terms of rainfall, the next seven days are forecast to be wetter than average in the northwest, but drier than average elsewhere in the country.
Met Éireann said it will be especially dry in southern and eastern coastal areas.
Soil temperatures will continue to be well above average. Drying conditions will be good in the east and south on Monday and Tuesday, although winds will be light.
There will be opportunities for spraying this week, particularly in the south and east, as it will become less windy.
Met Éireann has said that in most of the country soil moisture deficits currently range from 40mm to 70mm for all soils (well to poorly drained) with restrictions to growth presenting in some areas.
The southwest of Munster is less dry, with soil moisture deficits of two to 14mm. An improvement should come in week ahead in parts of the west and northwest, but other parts of the country will not have enough rainfall to bring improvement, it warned.
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