Today: Brighter conditions with showers will follow into southern areas by afternoon and extend north-eastwards according to Met Éireann.
The showers will be heavy with thunderstorms developing in many areas leading to localized flooding. Top temperatures of 18 to 22 degrees generally, but cooler with 16 or 17 degrees in the north and northwest.
Moderate southeasterly winds will veer southwesterly as the rain clears and increase fresh to strong and gusty over Munster and Leinster during the afternoon.Heavy showers will become isolated on Friday night. Lowest temperatures of 12 to 15 degrees in light breezes.
Saturday: The national forecaster predicts a mainly dry day with sunny spells, though showers may affect the east in the morning. Highest temperatures of 18 to 22 degrees in light to moderate southwest breezes.
Saturday night will start mainly dry, however, rain is likely in the west later and it will become breezy there with freshening southerly winds. Lowest temperatures of 11 to 14 degrees.
Sunday: It will be a breezy day with outbreaks of rain, according to the meteorological service. It will possibly turn heavy in the west and north with the best chance of dry and bright weather in the east.
Highest temperatures of 19 to 23 degrees in fresh southerly winds. A humid night will follow with temperatures not lower than 17 or 18 degrees. Rain is predicted to affect many areas during the night, again heaviest in the west.