The national forecaster has issued two separate Status Yellow warnings for a number of counties, due to heavy rain and possible thunderstorms later tonight.
The first warning covers Co. Donegal, and will be in place from 8pm on Friday evening until 2am on Saturday. Up to 30mm of rain is forecast, which may lead to excess surface water and localized flooding.
The second warning covers Cork, Kerry, Wexford, and Waterford. It will kick in at 2pm on Saturday, and remain in effect until 5am on Sunday.
Saturday is expected to be an almost total washout, with heavy rain falling across most areas of the country.