THE much-feared monster rain lashed the capital overnight causing havoc on the roads.
But the good news is that by this evening it will be mainly dry and sunny.
Overnight rain lashed the country again today with surface water causing a major problem for motorists on the M50.
A weather warning remained in places as persistent rain fell, causing spot flooding on some roads.
In Dublin, the fire brigade and gardai dealt with several weather-related car crashes.
However, Dublin Fire Brigade said there were no major problems with traffic in Dublin city as rush-hour got under way.
It said the persistent and heavy rain had led to very wet roads with poor visibility and excess water a problem on secondary routes.
Met Eireann forecast that an average month's rain would fall across the country in a 24- to 36- hour period, with up to 80mm of rain in some areas.
One forecaster said the deluge was comparable to the heavy rain that caused widespread flooding in November 2009.
Met Eireann said there was a risk of a further 20mm to 30mm of rain today, but clearer weather was expected by this evening.
Kerry and west Cork would be the first to see the weather brighten and drier, brighter weather will extend northeastwards throughout the afternoon and evening.
Saturday and Sunday will be mostly dry, with some sunshine but just "a few scattered showers" although there is a risk of more organised rain in the southwest, Met Eireann said.
Winds will stay light and it will be a bit milder with highest temperatures of between 14 and 17 degrees.
Tuesday and Wednesday of next week will start dry in most places with sunshine, but showers will develop on both days with the risk of a few heavy ones, the forecast service said.
On Thursday, there is a risk that heavy rain will return but it could also stay south of Ireland Met Eireann said.