The bank holiday weekend was due to see some tropical air move across the country, bringing with it pleasant conditions nationwide for the Easter break.
However, the latest forecasts show a stark change in conditions for some areas, with heavy rain and cooler temperatures expected from Friday.
The weather will start off dull on Friday with scattered outbreaks of rain for most counties - while forecast imagery shows only southern areas escaping the downpours.
According to Met Eireann, “whilst some sunny spells will gradually break through later, scattered showers will follow too, clearing northwards this evening.”
Despite the grim conditions, it will be mild and humid with highest temperatures of 13 to 17 degrees.
On Saturday, any overnight mist or fog will clear early in the morning to give a mostly dry start with some sunny spells.
After the pleasant start to the day, patchy rain will begin to affect southern and western counties.

Then, during the afternoon, outbreaks of rain will gradually move in across the western half of Ireland and will be heaviest closest to the Atlantic coast.
Most eastern and northern areas will stay dry with sunny spells and highest temperatures of 12 to 16 degrees are expected.
It’ll be a wet start in many areas on Sunday with widespread falls of rain early in the morning, followed by even heavier showers with the chance of hail.
The worst conditions look likely to reach those living anywhere along the west coast of Ireland, with some counties in the south and north expecting heavy downpours.
Highest temperatures of 12 to 15 degrees, but turning cooler as the rain clears.
Heading into next week the, the Irish forecaster predicts things remaining unsettled with windy conditions on the way and heavy hail in the north.
Their prediction reads: “Feeling cooler with a mix of sunny spells and blustery showers, some possibly heavy with hail across the north.
“Highest temperatures of just 9 to 12 degrees in moderate to fresh westerly winds.”
As for the rest of next week, it says: “Staying cool and generally unsettled for the early part of the week.”
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