Irish weather experts are predicting the high-pressure conditions to continue right up until next weekend.
Temperatures peak on Saturday, when the mercury is expected to shoot up to 21C, according to Met Eireann.
The forecaster said: “Saturday will be dry and warm in most areas with sunny spells.
“In the northwest, it will be cloudier with rain developing later in the day.
“Maximum temperatures 16 to 21C, warmest in the east and south.
“Winds mostly moderate southwesterly, but fresh to strong in Connacht and Ulster.”
However, there is the possibility of rain.
“Mostly cloudy, with scattered outbreaks of rain and drizzle, persistent in places on Sunday.
“However, there will be good dry periods in the south and southeast and somewhat clearer conditions will develop in the north, extending slowly southwards later Sunday and Sunday night.
“Relatively cool in most areas on Sunday, with maximum temperatures of 14 to 16C, but it will be mild and humid in the south and southeast, with temperatures of 17 to 20C.
“Winds will be mostly light, westerly.
“Sunday night will be mainly dry, with just a few spots of light rain or drizzle at first, mainly in parts of the south.
“Mist and fog patches will form in light winds. Min. 5 to 9C generally, but milder in the south.”