The hot weather is expected to last until Sunday, Met Éireann has confirmed.
Over the past couple of days, Ireland has sizzled in unusually warm weather and Met Éireann confirmed that today will be a “fairly hot day” once again.
“Mount Dillon [in Roscommon] could likely get an even hotter day than yesterday,” Met Éireann meteorologist Brandon Creagh told Newstalk Breakfast.
“Temperatures forecast up to 28 or 29°C possible for some parts over the northern half of the country.
“Then Munster, you’re looking slightly cooler but still a very warm day - highs of to 20 to 24°C for parts there.”

Although most of the country will be bathed in sunshine, Mr Creagh cautioned that there will be thunderstorms in some parts of the west.
“We did have some weather overnight as well with some thunder storms developing with the very humid air that’s over us at the moment,” he said.
“So, Clare has some pretty active thunder storms and they’re moving into Galway.
“So, we do have a status yellow thunder storm warning out at the moment for a few counties in the west.
“But those thunder storms should die down through the rest of the morning and widespread sunshine developing through the rest of the day, leading to those very high temperatures.
“It’s then the end of the very hot weather then, as the Atlantic begins to take over from tomorrow onwards.
“With cooler days on the way, especially from Sunday onwards.”
Mr Creagh concluded that today “is definitely the peak of the hot weather”.
Main image: Swimmers at the Forty Foot. Picture by: Sasko Lazarov/RollingNews.ie