Mini-heatwave set to last until Friday as mercury hits 18C
Blue skies and high temperatures are set to last until Friday.
With schools closed, families can look forward to "unseasonably warm weather", with temperatures reaching as high as 18C.
The current spell of high pressure settling over the nation will remain until the end of the week, allowing for a mini-heatwave.
Met Éireann says although nights will remain cool with fog and mist in places, daytime will bring "very pleasant conditions".
"It's going to stay dry, with good sunshine all over," forecaster Deirdre Lowe told the Irish Independent.
"Overnight fog will clear today and Wednesday, but some sea fog may linger later in the morning, latching on to the east and south coast.
"But, generally speaking, good sunny spells will prevail, with temperatures in the dull areas reaching 13C and up to 18C in the sunshine.
"It is well above normal for this time of year," she added.
Tonight will see temperatures dip as low as 2C, however, as fog rolls in.
"Nights will be cold this week, with some mist and a touch of grass frost in places," said Ms Lowe.
"Fog will take a couple of hours to lift each day, so if you're heading out early, please be careful."
Temperatures on Wednesday and Thursday will top 16C inland and to the west.
The east and south will be a little cooler.
Friday will mark an unwelcome return to more seasonal weather, though.
"High pressure will slip away to the east, and the Atlantic regime will take over for Friday and the weekend," said Ms Lowe.
"It's going to be blustery with a mixture of sunshine and heavy rain at times."