A status orange weather alert remains in place across the country.
Met Éireann issued the thunderstorm warning for Munster, Leinster, Connacht, Donegal, Monaghan and Cavan yesterday evening.
Thundery downpours are likely at times which may lead to spot flooding in places.
However, in better news, the showers will start to die away later this evening.
Met Éireann's Harm Luijkx said: "All the ingredients are there again for potentially heavy, thundery downpours this afternoon.
"There could be intense downpours locally, with spot flooding and it will be widespread."