Only 3 counties are not affected by the warning.
A status yellow thunderstorm and rain warning has been issued for most of the country, including Kildare.
The only counties the alert will not impact are Clare, Limerick, Kerry and Cork.
Heavy, potentially thundery downpours are expected across the rest of the country until 9 o'clock tonight.
Met Eireann is warning localised flooding may form where the rain is heaviest.
Status Yellow - Rain & Thunderstorm warning for Leinster, Cavan, Donegal, Monaghan, Connacht, Tipperary, Waterford— Met Éireann (@MetEireann) September 9, 2021
Heavy, potentially thundery downpours breaking out this afternoon & evening will produce some localised flooding ⚠️
Valid: 13:28 Thurs to 21:00 Thurs 09/09/2021. pic.twitter.com/8wOfAOTHm3