A Status Yellow rain warning has been issued for Co Kerry from tomorrow, with heavy rain forecast.
The warning will come into effect from 7pm tomorrow evening and remain in place until 10am on Monday morning.
Met Éireann said there would be heavy rain and the potential of localised flooding in some areas.
The forecaster also warned road users of the possibility of poor visibility and difficult driving conditions.
Met Éireann has forecast that it will be dry to begin tomorrow with outbreaks of rain and drizzle, some heavy, especially in the west and southwest during the night.
Monday will be mostly cloudy and rainy, with the chance of heavy falls and some localised flooding, according to the forecaster. However, conditions are likely to become drier in the southwest with some bright spells possible.