Met Eireann has issued a stunning forecast as Dublin will sizzle in 20-degree temperatures.
The national broadcaster has also warned hayfever sufferers that a "very high" pollen level is expected today.
Today will be dry with plenty of sunshine as temperatures will range from 19 to 21 degrees.
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Tonight will be cloudy with light rain and drizzle developing in the morning. Temperatures will be between 10 and 12 degrees.
Tomorrow morning will be cloudy and damp to start with but this will clear to the southeast.
The afternoon and evening will see bright or sunny spells developing with a few light showers. Temperatures will be of 17 or 18 degrees.
While there is no further forecast for Dublin, this is what the national outlook says:
Tuesday
"Tuesday night will be mainly dry with a fair amount of cloud and perhaps some patchy drizzle.
"Most like near western coasts. Lowest temperatures of 9 to 12 degrees with light northerly breezes."
Wednesday
"Wednesday will be largely dry with a fair amount of cloud and some sunny intervals, the best of these in the east and south.
"Highest temperatures of 16 to 21 degrees, coolest in the northwest and warmest in the southeast with light to moderate northwesterly breezes.
Thursday
"Thursday will be similar. It will continue mainly dry with a fair amount of cloud and some sunny spells, the best of these in the east. Highest temperatures of 17 to 22 degrees, warmest in the east.
Friday
"It looks like the weather will change on FRIDAY. It will start off mainly dry. However, rain will develop in the west early in the morning and will gradually spread eastwards across the country.
"Cooler weather with showers will follow later. Highest temperatures of 15 to 20 degrees warmest in north Leinster and east Ulster.
Weekend
"Current in indications suggest that next weekend will be unsettled with low pressure dominating the weather over Ireland, bringing showers or longer spells of rain with temperatures in the mid to high teens and light-moderate variable breezes."
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