As 135,000 people prepare to let Robbie Williams entertain them tonight in what is billed as the biggest event in the Phoenix Park since the Pope's 1979 visit, the weather looks set to play along.
While the sizzling heat of past days is unlikely to be repeated, temperatures should be a comfortable 20 to 25 degrees today, according to Met Éireann.
Cloud will start from the west and move east during the day today and while it won't be a wet day there may be a few showers, according to forecaster Ms Sarah O'Reilly.
She said yesterday had been a "disappointing day" along the east coast because of sea fog. Rosslare, Co Wexford, recorded the lowest temperature at a still pleasant 17 degrees, while the hottest place in Ireland yesterday was Claremorris, Co Mayo, at 29 degrees.
The slightly cooler weather will suit the numerous weekend events taking place, including the Tullamore national livestock show in Co Offaly, the largest one-day farming event of the year which is expected to attract some 50,000 visitors to the Charleville Estate grounds tomorrow.
Some 1,000 livestock entries, 850 classes, 300 stands and a display along the lines of the Chelsea Flower Show are some of the attractions. Another major August landmark is the 28th annual Moynalty Steam Threshing festival tomorrow near Kells, Co Meath, which features a display of horse-driven and steam threshing machines from the 1930s and 1940s, a vintage tractor and car rally, displays of traditional craft-making and a children's funfair.
The GAA weekend fixtures include tomorrow's football quarter-final replay between Donegal and Galway in Castlebar and the Croke Park hurling semi-final double-header with the Tipperary versus Galway minor match followed by the senior Cork and Wexford tussle.
Meanwhile, Dublin looks set to be chaotic with traffic delays and restrictions over the weekend.
Iarnród Éireann has warned fans travelling to Dublin that they must have "controlled tickets", which state the specific train they are taking.
The Tara Street DART station has closed for the weekend for work to extend the platform and passengers will have to take transfer buses between Pearse and Connolly station until tomorrow.
But special late-night DARTS will run after the Robbie Williams concert, the last one leaving from Connolly at 23.50 p.m. and at 00.15 a.m. from Pearse St. At the biggest concert this year in Ireland, Williams takes to the stage at 8.30 p.m. following Ash at 7 p.m. and Kelly Osbourne at 5.35 p.m.
MCD, the concert promoters, have warned that umbrellas, flag poles, alcohol cans or bottles are not allowed into the event. A traffic management plan has been put in place with 400 gardaí who have appealed to concert-goers to use public transport, including the shuttle bus services from the city centre at George's Quay to the Phoenix Park.
Dublin Zoo will be open, as will the State's official guest house, Farmleigh, where free tours are available, while visitors can walk the extensive gardens on the 78-acre estate.
Back on the city streets, there will be further traffic restrictions and delays in the Drumcondra area because of a two-day soccer tournament at Tolka Park.
Richmond Road between Gracepark Road and Upper Drumcondra Road will be closed to vehicles from 11.30 a.m. until 6 p.m. today and tomorrow and parking will be prohibited.
