The weather is expected to improve again by midweek after the heatwave was broken with mixed weather over the weekend.
However, most of the country is to be hit by more showers and blustery winds today and tomorrow, with temperatures in the late teens and early 20s.
Skies are due to brighten up by midweek and it is possible we may have a sunny couple of days next weekend, according to forecaster Gerry Scully.
Temperatures will range between 17 degrees and 20 degrees today with the showers heaviest in the morning in a "hit and miss" fashion. "Most parts of the country are likely to get showers at some stage. Ulster and Connacht will bear the brunt of this. In the afternoon and evening things will brighten up to some degree and the rain will give way to occasional showers."
The eastern and south-eastern parts of the country will enjoy highest temperatures and clearest skies today. Tomorrow, the forecast is to improve slightly. Temperatures will range between 17 degrees and 22 degrees, with the southeast of the country benefiting most.
By Wednesday and lasting until at least Friday, temperatures are expected to rise and wind and rain to subside. Temperatures are due to range between 22 degrees and 23 degrees. The southern part of the country is set to enjoy the highest temperatures and Ulster and Connacht are expected to endure the most rain due to winds from the northwest.
A cool wind is expected to keep temperatures in the low 20s but the sky is expected to remain clear in the southern part of the country. "Things will improve later in the week. But the jury is still out as to whether this weather might struggle into the weekend. The weather this week will be a return to the more normal conditions we expect as this time of year," Mr Scully added.
Meanwhile, the Police Service of Northern Ireland (PSNI) issued a driving warning yesterday following severe flooding in the north Belfast area. The PSNI have appealed to drivers to keep speeds down on roads all over Northern Ireland as substantial rain has affected all areas.