It's set to get noticeably cooler across the capital with heavy showers predicted at the start of the week.
Met Eireann predict a dull and damp Sunday with temperatures dropping to as low as 5C tonight.
And the forecaster's reckon it's going to be a grim start to the week as heavy showers are predicted for Monday.
Heavy and thundery downpours are expected to arrive into the afternoon and early evening, with highest temperatures of 15 to 17C.
The unsettled weather looks set to last the rest of the week.
The national forecast says: "Tuesday: Feeling fresh start to begin with some good sunshine.
"Staying dry and pleasant in most areas for daylight hours, however cloud will slowly build and rain will arrive into south and southwest counties through the evening.
"Highest temperatures will range 15 to 18 or 19 degrees, in light variable breezes. Scattered falls of heavy rain will move up across the country after-dark.
"Wednesday: Lingering overnight rain will clear during the morning, with sunshine and well scattered showers for the rest of the day.
"Highest temperatures 15 to 20 degrees, mildest across southern counties, in light to moderate west to northwest breezes. Feeling quite cool after-dark.
"Thursday: Overall dry with sunny spells - just a few light showers, mainly near west and northwest coasts.
"Highest temperatures 14 to 18 degrees, in light northwest breezes, again best values across southern counties.
"Feeling quite cool after-dark."
